perfectivize

[ per-fek-tuh-vahyz ]
/ pərˈfɛk təˌvaɪz /

verb (used with object), per·fec·tiv·ized, per·fec·tiv·iz·ing.

to make perfective.
Also especially British, per·fec·tiv·ise.

Origin of perfectivize

First recorded in 1900–05; perfective + -ize