perfect: [13] Something that is perfect is etymologically ‘completely made’. The word comes via Old French parfit from Latin perfectus, the past participle of perficere ‘finish’. This was a compound verb formed from the prefix per- ‘completely’ and facere ‘do, make’ (source of English fact, fashion, etc). The modern English form perfect, a reversion to the Latin spelling, emerged in the 15th century. => fact, factory, fashion
