Amaze

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Old English āmasian, of unknown origin.

wiktionary

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From Middle English *amasen(“to bewilder, perplex”), from Old English āmasian(“to confuse, astonish”), from ā-(perfective prefix) + *masian(“to confound”), equivalent to a- +‎ maze.

etymonline

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amaze (v.)

"overwhelm or confound with sudden surprise or wonder," 1580s, back-formation from Middle English amased "stunned, dazed, bewildered," (late 14c.), earlier "stupefied, irrational, foolish" (c. 1200), from Old English amasod, from a- (1), probably used here as an intensive prefix, + *mæs (see maze). Related: Amazed; amazing.