A
triliteral or triconsonantal root (, '
; , '; , '''') is a root containing a sequence of three consonants. The following are some of the forms which can be derived from the triconsonantal root (general overall meaning "to write") in Hebrew and Arabic: The Hebrew
fricatives stemming from
begadkefat lenition are transcribed here as "ḵ", "ṯ" and "ḇ", to retain their connection with the consonantal root k-t-b. They are pronounced , , in Biblical Hebrew and , , in Modern Hebrew respectively.
Modern Hebrew has no
gemination; where there was historically gemination, they are reduced to single consonants, with consonants in the
begadkefat remaining the same. In
Hebrew grammatical terminology, the word
binyan (, plural
binyanim) is used to refer to a verb
derived stem or overall verb derivation pattern, while the word
mishqal (or
mishkal) is used to refer to a
noun derivation pattern, and these words have gained some use in English-language linguistic terminology. The Arabic terms, called
wazn (plural ,
awzān) for the pattern and '
/ ' (plural , ''
) for the root have not gained the same currency in cross-linguistic Semitic scholarship as the Hebrew equivalents, and Western grammarians continue to use "stem"/"form"/"pattern" for the former and "root" for the latter—though "form" and "pattern" are accurate translations of the Arabic grammatical term wazan'' (originally meaning 'weight, measure'), and "root" is a literal translation of ''''.
Biliteral origin of some triliteral roots Although most roots in Hebrew seem to be triliteral, many of them were originally biliteral, cf. the relation between: The
Hebrew root – √sh-q-p "look out/through" or "reflect" deriving from – √q-p "bend, arch, lean towards" and similar verbs fit into the shaCCéC verb-pattern. This verb-pattern sh-C-C is usually
causative, cf.
History There is debate about whether both biconsonantal and triconsonantal roots were represented in
Proto-Afroasiatic, or whether one or the other of them was the original form of the
Afroasiatic verb. According to one study of the
Proto-Semitic lexicon, biconsonantal roots are more abundant for words denoting
Stone Age materials, whereas materials discovered during the
Neolithic are uniquely triconsonantal. This implies a change in Proto-Semitic language structure concomitant with the transition to
agriculture. In particular, monosyllabic biconsonantal names are associated with a pre-
Natufian cultural background, i.e., older than . As we have no texts from any Semitic language older than , reconstructions of Proto-Semitic are inferred from these more recent Semitic texts. ==Quadriliteral roots==