desinential

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des·i·nence

D0160450 (dĕs′ə-nəns)n. A grammatical ending; an inflection.
[French désinence, from Medieval Latin dēsinentia, from Latin dēsinēns, dēsinent-, present participle of dēsinere, to come to an end : dē-, off; see de- + sinere, to leave.]
des′i·nen′tial (-nĕn′shəl) adj.
Translations
desinencial