abash

Origin

Attested from 1303, as Middle English abaisen, abaishen, abashen (“lose one's composure, be upset”), from the later 14th-century also transitive "to make ashamed, to perplex or embarrass"; from Anglo-Norman abaïss, from Middle French abair, abaisser (“lose one's composure, be startled, be stunned”), from Old French esbaïr, (French ébahir), from es- (“utterly”) + baïr (“to astonish”), from Medieval Latin *exbadō, from ex- (“out of”) + bado (“to gape, yawn”), an onomatopoeic word imitating a yawn, see also French badaud (“rubbernecker”).