What is "perfective"

Perfective \Per*fect"ive\, a. Tending or conducing to make perfect, or to bring to perfection; -- usually followed by of. ``A perfective alteration.''
--Fuller.

Actions perfective of their natures.
--Ray.

1590s, from Medieval Latin perfectivus, from Latin perfect-, past participle stem of perficere (see perfect (adj.)). Grammatical use is from 1844.

a. 1 (context grammar English) of, or relative to the perfect tense or perfective aspect. 2 (context obsolete English) Tending to make perfect, or to bring to perfection. n. (context grammar English) a perfective verb form

1. n. a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect) [syn: perfective tense, perfect, perfect tense]

2. the aspect of a verb that expresses a completed completed action [syn: perfective aspect]