English In Old English, velar stops were
palatalized in certain cases but not others. That resulted in some alternations, many of which have been
levelled, but traces occur in some word doublets such as
ditch and
dike . In the past tense of certain verbs, English also retains traces of several ancient sound developments such as *kt > *xt and *ŋx > *x; many of them have been further complicated by the loss of in Middle English. •
seek :
sought •
think :
thought The pair
teach :
taught has a combination of both this and palatalization. A second palatalization, called
yod-coalescence, occurs in loanwords from
Latin. One subtype affects the
sibilant consonants: earlier and were palatalized, leading to an alternation between alveolar and postalveolar . •
confess :
confession •
fuse :
fusion Another unproductive layer results from the Vulgar Latin palatalization of velar stops before front vowels. It is thus imported from the Romance languages, and alternate with . •
induce :
induction •
magic :
magus A combination of inherited and loaned alternation also occurs: an alternation pattern *t : *sj was brought over in Latinate loanwords, which in English was then turned into an alternation between and . •
act :
action Celtic languages The
Insular Celtic languages are well-known for their initial consonant mutations. The individual languages vary on the number of mutations available:
Scottish Gaelic has one,
Irish and
Manx have two,
Welsh,
Cornish and
Breton have four (if mixed mutations are counted). Cornish and Breton have so-called mixed mutations; a trigger causes one mutation to some sounds and another to other sounds. Welsh also has a mixed mutation (triggered by
na,
ni and
oni). The languages vary on the environments for the mutations, but some generalizations can be made. Those languages all have feminine singular nouns mutated after the definite article, with adjectives mutated after feminine singular nouns. In most of the languages, the
possessive determiners trigger various mutations. Here are some examples from Breton, Cornish, Irish, Scottish Gaelic, and Welsh: Older textbooks on Gaelic sometimes refer to the
c → ch mutation as "aspiration", but it is not
aspiration in the sense of the word used by modern phoneticians, and linguists prefer to speak of
lenition here. Historically, the Celtic initial mutations originated from
progressive assimilation and
sandhi phenomena between adjacent words. For example, the mutating effect of the conjunction
a 'and' is from the word once having the form *ak, and the final consonant influenced the following sounds.
Welsh Welsh has three main classes of initial consonant mutation:
soft mutation ();
nasal mutation (); and
aspirate mutation, which is sometimes called
spirant mutation (). The fourth category is
mixed mutation, which calls for an
aspirate mutation if possible but otherwise a
soft mutation. The following tables show the range of Welsh mutations with examples. A blank cell indicates that no change occurs. The mutation
ts →
j corresponds to the
t →
d mutation and reflects a change heard in modern words borrowed from English. Borrowed words like (chips) can often be heard in Wales. 'I'm going to get (some) chips'; 'I have chips'. However, the
ts →
j mutation is not usually included the classic list of Welsh mutations and is rarely taught in formal classes. Nevertheless, it is a part of the colloquial language and is used by native speakers. Initial consonant mutation is often used to indicate
grammatical gender of nouns in Welsh, but only in singular words. For example, "the man" vs. "the woman"; "the big boy" vs. "the big girl". With plural words there are no mutations, e.g. "the big boys", "the big girls". Mutation can also distinguish the possessive pronouns "his" and "her", e.g. (soft mutation) "his father" vs. (aspirate mutation) "her father". Again when the pronoun is plural there is no mutation: "their (m. or f.) father". Mutation of consonants is found not only at the beginning of words but also internally in compounds, affecting not only the beginning of the second element but also sometimes the end of the first element, e.g. "remember", "forget"; "community", "contemporary".
h-prothesis h-prothesis is a feature in Welsh in which a vowel-initial word becomes
h-initial. It occurs after the possessive pronouns 'her', 'our', and 'their': 'age', 'her age' (cf. 'his age'). It also occurs with 'twenty' after 'on' in the traditional counting system: 'twenty-one', literally "one on twenty".
Irish Irish has two consonant mutations:
lenition ( ) and
eclipsis ( ).
Lenition Lenition () is indicated by an following the consonant in question or, in some older typefaces and texts, by an
overdot () above the letter that has undergone lenition. The effects of lenition are as follows: • A stop becomes a fricative.
Voicing is retained, as is
place of articulation except for the
coronals. • → • → • → • → • → • → • → , • → • → • → • → • → • → • → • and become , but , , , , , and do not mutate. • and are deleted.
Eclipsis The following tables show how eclipsis affects the start of words. Eclipsis is represented in the orthography by adding a letter, or occasionally two letters, to the start of the word. If the word is to be capitalised, the original first letter is capitalised, not the letter or letters added for eclipsis, e.g. the in , Ireland's national anthem.
Russian In
Russian, consonant mutation and
alternations are a very common phenomenon during
word formation,
conjugation and in
comparative adjectives. The most common classes of mutations are the alternation between
velar and
postalveolar consonants: • → • → • → , as in "quiet" and "quieter" • Gain or loss of
palatalization: "
tsar" and "of the tsar" (adjective) Other common mutations are: • → (or less frequently щ ), → • → , → , → • → : плеск → плещет "splash" / "(he) splashes", → : свистеть → свищу "to whistle" / "I whistle"
Hebrew Modern
Hebrew shows a limited set of mutation alternations, involving
spirantization only. The consonants affected may be stem-initial, stem-medial, or stem-final. However, in Modern Hebrew, stop and fricative variants of , and are sometimes distinct phonemes: For a more in depth discussion of this phenomenon, see
Begadkefat.
Japanese Rendaku, meaning "sequential voicing", is a mutation of the initial consonant of a non-initial component in a
Japanese compound word: • nigiri + sushi → nigiri
zushi ("grip (with the hand)" + "sushi" → "hand-shaped
sushi") • nigori + sake → nigori
zake ("muddy" + "rice wine" → "unfiltered
sake")
Uralic languages Word-medial consonant mutation is found in several
Uralic languages and has the traditional name of
consonant gradation. It is pervasive, especially in the
Samic and
Finnic branches.
Finnish Consonant gradation involves an alternation in consonants between a strong grade in some forms of a word and a weak grade in others. The consonants subject to gradation are the plosives (, , ) that are followed by a vowel and preceded by a vowel, a sonorant (, , , ), or . The strong grade usually appears in an open syllable or before a long vowel. The gradation of loanwords may include gradation of the plosives that are not native to Finnish:
Burmese Burmese exhibits consonant mutation, in the form of sandhi voicing, to varying degrees across regional dialects. Speakers from Yangon and
Upper Myanmar exhibit more consistent use of sandhi voicing and assimilation than speakers from peripheral regions, though local and individual variation exists. The possible ancestral pattern of mutation and its descendants in some modern Central Vanuatu languages are shown below:
New Caledonia Initial consonant mutation also serves a grammatical purpose in some
New Caledonian languages. For example,
Iaai uses initial consonant mutation in verbs to distinguish between specific/
definite objects and generic/indefinite objects: Those forms likely derive from an earlier
reduplication of the first syllable in which the interconsonantal vowel was deleted, resulting in a
spirantization of the formerly reduplicated consonant.
Dholuo The
Dholuo language (one of the
Luo languages) shows alternations between voiced and voiceless states of the final consonant of a noun stem. In the
construct state (the form that means 'hill of', 'stick of', etc.) the voicing of the final consonant is switched from the absolute state. (There are also often
vowel alternations that are independent of consonant mutation.) • 'hill' (abs.), go
d (const.) • 'stick' (abs.), lu
ð (const.) • 'appearance' (abs.), ki
t (const.) • 'bone' (abs.), (const.) • bu
k 'book' (abs.), bu
g (const.) • 'book' (abs.), (const.)
Fula Consonant mutation is a prominent feature of the
Fula language. The Gombe dialect spoken in
Nigeria, for example, shows mutation triggered by
declension class. The mutation grades are
fortition and
prenasalization: For example, the stems
rim- 'free man' and '''''' 'person' have the following forms: • (class 2),
dimo (class 1),
ndimon (class 6) • (class 2),
gimɗo (class 1),
ŋgimkon (class 6)
Indonesian and Malay The active form of a multisyllabic verb with an initial
stop consonant or
fricative consonant is formed by prefixing the verb stem with
meN- in which
N stands for a
nasal sharing the same
place of articulation as the initial consonant: • garuk → me
nggaruk (= to scratch), hitung → me
nghitung (= to count), • beri → me
mberi (= to give), fitnah → me
mfitnah (= to accuse falsely), • cari → me
ncari (= to search), dapat → me
ndapat (= to obtain), *jangkau → me
njangkau (= to reach) An initial consonant that is an unvoiced stop or
s is deleted, leaving only the nasal in its place. •
kandung → me
ngandung (= to contain or to be pregnant), •
putih → me
mutih (= to turn white), •
satu → me
nyatu (= to become one / to unite), •
tulis → me
nulis (= to write). Applied to verbs starting with a vowel, the nasal is realized as
ng . Monosyllabic verbs add an
epenthetic vowel before prefixing and produce the prefix
menge-: • bor (= boring tool / drill) → me
ngebor (= to make a hole with drill). Verbs starting with a nasal or
approximant consonant do not add any mutant nasal, only
me-. The colloquial language (especially Jakartan Indonesian) drops
me- prefix but tends to replace it with nasalization in some consonants: •
tanya →
menanya →
nanya •
pikir →
memikir →
mikir •
merepotkan →
ng(e)repotin
Latvian More information is
available in the Latvian Wikipedia. Also two consonants can mutate as a group.
Ute In
Ute, also called Southern Paiute, there are three consonant mutations, which are triggered by different word-stems, The mutations are
spirantization,
gemination, and
prenasalization: For example, the absolutive suffix
-pi appears in different forms, according to the noun stem to which it is suffixed: • movi-
ppi 'nose' • sappI-
vi 'belly' • -
mpi 'tongue' == See also ==