Abstract EN:

This work lies within the scope of a reorganization of the lexicon of Arabic. The bilitarism is in the heart of this reorganization which exceeds the warnings of the trilitarists against any decomposition of the trilateral semitic root. A classification based on the creed trilitarist, which is the root, cannot account for some regularities in arabic lexicon. "The paramount significance" is not any more the prerogative of the trilateral root, instead, it appears in a compound bilateral, the etymon. The latter, is itself underlained by a more abstract level of representation : The matrix that is articulating phonetic features around a "notional invariant". The etymon being bilateral passes by processes of muffling in order to satisfy the trilateral morphology of Arabic. This work treats of the obstruent's incrementation in third radical, but also and especially, the hypothesis that trilateral forms can derive from the mixing of two etymons. Our study is based on phonetic-semantic's correlations that account for problems of semantics related to the phenomena of polysemia, homonymy and of enantiosemy.