I. pərˈfektiv, ˈpərfik- adjective
Etymology: Medieval Latin perfectivus, from Latin perfectus (past participle of perficere to complete, perfect) + -ivus -ive — more at perfect
1. archaic
a. : tending to make perfect
b. : being in the process of improvement : becoming better
2. : expressing action as complete or as implying the notion of completion, conclusion, or result — used of a form or aspect of the verb; opposed to imperfective
• perfectively adverb
• perfectiveness noun -es
• perfectivity noun -es
II. noun
( -s )
1. : the perfective aspect of a language
2. : a verb form in the perfective aspect