complaisant
adj.
1640s, from French complaisant (16c.), in Middle French, "pleasing," present participle of complaire "acquiesce to please," from Latin complacere "be very pleasing" (see complacent, with which it overlapped till mid-19c.). Possibly influenced in French by Old French plaire "gratify."
〔李〕[com-;plais(plac);-anta.] a.殷勤的； 恳切的； 讨好的 ←plac,pleas (L placere)=to please 取悦，使高兴