MYSTIFY
mystify
(verb) make mysterious; “mystify the story”
perplex, vex, stick, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound
(verb) be a mystery or bewildering to; “This beats me!”; “Got me--I don’t know the answer!”; “a vexing problem”; “This question really stuck me”
Source: WordNet® 3.1
Etymology
Verb
mystify (third-person singular simple present mystifies, present participle mystifying, simple past and past participle mystified)
(transitive) To thoroughly confuse, befuddle, or bewilder.
Source: Wiktionary
Mys"ti*fy, v. t. [imp. & p. p. Mystified; p. pr. & vb. n.
Mystifying.] Etym: [F. mystifier, fr. Gr. -ficare (in comp.) to make.
See 1st Mystery, and -fy.]
1. To involve in mystery; to make obscure or difficult to understand;
as, to mystify a passage of Scripture.
2. To perplex the mind of; to puzzle; to impose upon the credulity of
; as, to mystify an opponent.
He took undue advantage of his credulity and mystified him
exceedingly. Ld. Campbell.
Source: Webster’s Unabridged Dictionary 1913 Edition