Abstract:
This research, "Grammatical Inactivation in letters , El-Elghaa", aims at studying categories of permissible inactivation in Arabic, which work according to certain conditions and forms. They can be inactive due to the absence of a certain condition or form. They include verbs, nouns and prepositions which vary between activation and inactivation, "El-Ehmal and El-E'emal". The study has explored the dictionary and terminological meaning of "El-Ehmal", including the inactivation of complete and incomplete "defective" verbs, in addition to the inactivation of nouns and prepositions.
Inactivation refers to the disuse of words. Inactivation does not affect an active word unless it is exposed to exceptional conditions ,which may inactivate or return it to its origin.