Mystify

Mys"ti*fy (?), v. t. [imp. & p. p. Mystified (?); p. pr. & vb. n. Mystifying (?).] [F. mystifier, fr. Gr. ? + L. - 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.