abash

/ə-ˈbash/

Middle English abaissen, abaschen "to lose one's composure," borrowed from Anglo-French abaiss-, stem of abair "to open wide, gape, be amazed," alteration (by prefix substitution) of esbaer (Continental Old French esbahir), from es- "out" (going back to Latin ex-) + baer "to open wide, gape," going back to Vulgar Latin *batāre

verb

  1. to destroy the self-possession or self-confidence of (someone) : disconcert

He had never blushed in his life; no humiliation could abash him.

embarrass discomfit abash disconcert rattle mean to distress by confusing or confounding. embarrass implies some influence that impedes thought, speech, or action. discomfit implies a hampering or frustrating accompanied by confusion.

idiom

  1. to try or attempt (something)

I've never done it before, but I'll have a bash at it.