- perfect (adj.)
- early 13c., from O.Fr. parfit (11c.), from L. perfectus "completed," pp. of perficere "accomplish, finish, complete," from per- "completely" + facere "to perform" (see factitious). Often used in Eng. as an intensive (perfect stranger, etc.). The verb meaning "to bring to full development" is recorded from late 14c. Perfectionist is 1650s, originally theological, "one who believes moral perfection may be attained in earthly existence;" sense of "one only satisfied with the highest standards" is from 1934.