Satisfactory
来自Big Physics
late Middle English (in the sense ‘leading to the atonement of sin’): from Old French satisfactoire or medieval Latin satisfactorius, from Latin satisfacere ‘to content’ (see satisfy). The current senses date from the mid 17th century.
wiktionary
Borrowed from Middle French satisfactoire, from Late Latin satisfactōrius, from Latin satisfactus, past participle of satisfaciō.
etymonline
satisfactory (adj.)
mid-15c., satisfactorie, "capable of atoning for sin," from Old French satisfactoire (14c.) and directly from Late Latin satisfactorius, from Latin satisfactus, past participle of satisfacere (see satisfy). Meaning "adequate" is from 1630s. Related: Satisfactorily; satisfactoriness.
