late 14c. as an adjective, "perplexed, puzzled, bewildered," from Latin perplexus "involved, confused, intricate;" but Latin had no corresponding verb *perplectere. The Latin compound would be per "through" (see per) + plexus "entangled," past participle of plectere "to twine, braid, fold" (see complex (adj.)).
The form of the English adjective shifted to perplexed by late 15c., probably to conform to other past participle adjectives. The verb is latest attested of the group, in 1590s, evidently a back-formation from the adjective. Related: Perplexing, which well describes the history of the word.
例文
1. We 're dismal enough without conjuring up ghosts and visions to perplex us.
神現鬼を招く必要はありません。私たちはもう惨めです。
2.This problem is hard enough to perplex even the teacher.
この問題は確かに難しいので、先生も困惑しています。
3.I have no wish to perplex the issue.
問題を複雑にしたくない。
4.This maker continues to perplex me with this wine.
このメーカーは酒で私を悩ませ続けている。
5.In reality，careers and the workplace perplex me entirely.