Greek underwent many sound changes. Some occurred between
Proto-Indo-European (PIE) and Proto-Greek (PGr), some between the
Mycenaean Greek and Ancient Greek periods, which are separated by about 300 years (the
Greek Dark Ages), and some during the Koine Greek period. Some sound changes occurred only in particular Ancient Greek dialects, not in others, and certain dialects, such as Boeotian and Laconian, underwent sound changes similar to the ones that occurred later in Koine. This section primarily describes sound changes that occurred between the Mycenaean and Ancient Greek periods and during the Ancient Greek period. For sound changes occurring in Proto-Greek and in Koine Greek, see and
Koine Greek phonology.
Debuccalization In Proto-Greek, the PIE sibilant became by
debuccalization in many cases. • PIE > ('the') () — compare Sanskrit : PIE > ('seven') — compare Latin , Sanskrit Clusters of and a
sonorant (liquid or nasal) at the beginning of a word became a voiceless resonant in some forms of Archaic Greek. Voiceless remained in Attic at the beginning of words, and became the regular allophone of in this position; voiceless merged with ; and the rest of the voiceless resonants merged with the voiced resonants. • PIE > > Attic ('flow') — compare Sanskrit () ::PIE >
Corfu (), Attic ('stream') • PIE > Pamphylian , Attic () • PIE > Corfu , Attic ('taking') () PIE remained in clusters with stops and at the end of a word: • PIE > ('is') — compare Sanskrit , Latin : PIE > ('I will have') : PIE > ('kind') — compare Sanskrit , Latin The PIE semivowel , IPA , was sometimes debuccalized and sometimes
strengthened initially. How this development was conditioned is unclear; the involvement of the
laryngeals has been suggested. In certain other positions, it was kept, and frequently underwent other sound changes: • PIE > , ('who') (relative pronoun|) — compare Sanskrit • PIE > early > Attic ('yoke') — compare Sanskrit , Latin • > Proto-Greek > ('part') (compare ) Between vowels, became . Intervocalic probably occurred in Mycenaean. In most cases it was lost by the time of Ancient Greek. In a few cases, it was
transposed to the beginning of the word. Later, initial was lost by
psilosis. • PIE > PGr > Ionic > Attic ('of a race') (contraction; of ) • Mycenaean
pa-we-a₂, possibly > Ionic > Attic ('pieces of cloth') • PIE > Proto-Greek > ('singe') By
morphological leveling, intervocalic was kept in certain noun and verb forms: for instance, the marking the
stems for the
future and
aorist tenses. and sometimes , , and before the pre-Greek
semivowel . This sound was likely pronounced as an affricate or earlier in the history of Greek, but inscriptions do not show the spelling , which suggests that an affricate pronunciation did not occur in the Classical period. • * > > , Attic ('weaker') — compare ('softly') • PIE > > > , Attic ('I arrange') — compare ('battle line') and Latin • PIE > > > , Attic ('tongue') — compare ('point')
Loss of labiovelars Mycenaean Greek had three
labialized velar stops , aspirated, tenuis, and voiced. These derived from
PIE labiovelars and from sequences of a velar and , and were similar to the three regular velars of Ancient Greek , except with added
lip-rounding. They were written all using the same symbols in
Linear B, and are transcribed as
q. In Ancient Greek, all labialized velars
merged with other stops: labials , dentals , and velars . Which one they became depended on dialect and phonological environment. Because of this, certain words that originally had labialized velars have different stops depending on dialect, and certain words from the same root have different stops even in the same Ancient Greek dialect. • PIE, PGr > Attic , Thessalian Doric ('who?, what?') — compare Latin ::PIE, PGr > Attic , Ionic ('what kind?') • PIE > PGr > Attic ('I strike') :: > PGr > Attic ('slaughtering') • PIE ('notice') > Mycenaean
qe-te-o ('paid'), Ancient Greek ('pay') : ('honor') : ('penalty') > Latin ) Near or , the labialized velars had already lost their labialization in the Mycenaean period. These dialects are called
psilotic. These spellings indicate that was pronounced as a dental fricative or a sibilant , the same change that occurred later in Koine. Greek spelling, however, does not have a letter for a labial or velar fricative, so it is impossible to tell whether also changed to .
Compensatory lengthening In Attic, Ionic, and Doric, vowels were usually lengthened when a following consonant was lost. The syllable before the consonant was originally heavy, but loss of the consonant would cause it to be light. Therefore, the vowel before the consonant was lengthened, so that the syllable would continue to be heavy. This sound change is called compensatory lengthening, because the vowel length compensates for the loss of the consonant. The result of lengthening depended on dialect and time period. The table below shows all possible results: Wherever the digraphs correspond to original diphthongs they are called "genuine diphthongs", in all other cases, they are called "
spurious diphthongs".
Attic–Ionic vowel shift In Attic and Ionic, the Proto-Greek long shifted to . This shift did not happen in the other dialects. Thus, some cases of Attic and Ionic correspond to Doric and Aeolic , and other cases correspond to Doric and Aeolic . • Doric and Aeolic , Attic and Ionic ('mother') — compare Latin The vowel first shifted to , at which point it was distinct from Proto-Greek long , and then later and merged as . This is indicated by inscriptions in the
Cyclades, which write Proto-Greek as , but the shifted as and new from compensatory lengthening as . In Attic, both and Proto-Greek were written as , but they merged to at the end of the 5th century BC. At this point, nouns in the
masculine first declension were confused with
third-declension nouns with stems in. The first-declension nouns had resulting from original , while the third-declension nouns had resulting from contraction of . •
Aeschines () : () :: incorrect : () •
Hippocrates () : () : () :: incorrect In addition, words that had original in both Attic and Doric were given false Doric forms with in the choral passages of Athenian plays, indicating that Athenians could not distinguish the Attic-Ionic shifted from original Proto-Greek . • Attic and Doric ('blade of an oar') : incorrect Doric form In Attic, rather than is found immediately after , except in certain cases where the sound formerly came between the and the (
see above). • Doric , Attic , Ionic ('day') • Attic , Ionic ('such as') () • Attic , Ionic ('new') () < • But Attic , Ionic , Doric and ('young girl') < (as also in Arcadocypriot) The fact that is found instead of may indicate that earlier, the vowel shifted to in all cases, but then shifted back to after (reversion), or that the vowel never shifted at all in these cases. Sihler says that Attic is from reversion. This shift did not affect cases of long that developed from the contraction of certain sequences of vowels that contain . Thus, the vowels and are common in verbs with
a-contracted present and imperfect forms, such as "see". The examples below are shown with the hypothetical original forms from which they were contracted. • infinitive: "to see" < • third person singular present indicative active: "he sees" < • third person singular imperfect indicative active: "he saw" < Also unaffected was long that arose by
compensatory lengthening of short . Thus, Attic and Ionic had a contrast between the feminine genitive singular and feminine accusative plural , forms of the adjective and pronoun "this, that". The first derived from an original
*tautās with shifting of
ā to
ē, the other from
*tautans with compensatory lengthening of
ans to
ās.
Assimilation When one consonant comes next to another in verb or noun conjugation or word derivation, various
sandhi rules apply. When these rules affect the forms of nouns and adjectives or of compound words, they are reflected in spelling. Between words, the same rules also applied, but they are not reflected in standard spelling, only in inscriptions. Rules: •
Most basic rule: When two sounds appear next to each other, the first
assimilates in voicing and aspiration to the second. • This applies fully to stops. Fricatives assimilate only in voicing, sonorants do not assimilate. • Before an (future, aorist stem), velars become , labials become , and dentals disappear. • Before a (aorist passive stem), velars become , labials become , and dentals become . • Before an (perfect middle first-singular, first-plural, participle), velars become , nasal+velar becomes , labials become , dentals become , other sonorants remain the same. The alveolar nasal assimilates in
place of articulation, changing to a labial or velar nasal before labials or velars: • before the labials , , , (and the cluster ): : ; • before the velars , , (and the cluster ): : When precedes or , the first consonant assimilates to the second,
gemination takes place, and the combination is pronounced , as in from
underlying , or , as in from
underlying . The sound of zeta develops from original in some cases, and in other cases from . In the second case, it was likely first pronounced or , and this cluster underwent
metathesis early in the Ancient Greek period. Metathesis is likely in this case; clusters of a voiced stop and , like , do not occur in Ancient Greek, since they change to by assimilation (
see below), while clusters with the opposite order, like , pronounced , do occur. • ('to Athens') < • ('set') < Proto-Indo-European (Latin :
reduplicated present), from
zero-grade of the root of < "seat" • ('on foot') < PGr , from the root of "foot" • ('revere') < PGr , from the root of ('holy') ==Terminology==