abashyoudaoicibaDictYouDict[abash 词源字典]
abash: [14] Abash shares a common ancestry with abeyance [16], although the latter underwent an about-turn in meaning in the 17th century which disguises their relationship. They go back to a Latin verb batāre, meaning ‘yawn’ or ‘gape’. This was borrowed into French as baer, later bayer (it was the source of English bay ‘recessed space’).

The addition of the prefix es- (from Latin ex-) produced esbaer, later e(s)bahir ‘gape with astonishment’, whence, via the present stem e(s)bass-, came English abash, which originally meant ‘stand amazed’ as well as ‘embarrass, discomfit’. (Bashful is a 16thcentury derivative, with elision of the a-, which was first used by the dramatist Nicholas Udall.) Addition of the prefix a- to Old French baer, meanwhile, had given abaer ‘aspire after’, and its noun abeance ‘aspiration, desire’.

In legal terminology, this word was used in French for the condition of a person in expectation or hope of receiving property, but in English the focus quickly became reversed to the property, and its condition of being temporarily without an owner.

=> abeyance, bashful[abash etymology, abash origin, 英语词源]
amaze (v.)youdaoicibaDictYouDict
early 13c., amasian "stupefy, make crazy," from a-, probably used here as an intensive prefix, + -masian, related to maze (q.v.). Sense of "overwhelm with wonder" is from 1580s. Related: Amazed; amazing.
maze (n.)youdaoicibaDictYouDict
c. 1300, "delusion, bewilderment" (also as a verb, "stupefy, daze"), possibly from Old English *mæs, which is suggested by the compound amasod "amazed" and verb amasian "to confound, confuse" (see amaze). Perhaps related to Norwegian dialectal mas "exhausting labor," Swedish masa "to be slow or sluggish." Meaning "labyrinth" first recorded late 14c.
stupendous (adj.)youdaoicibaDictYouDict
1660s, correction of earlier stupendious "causing astonishment, astounding" (1540s), from Late Latin stupendus "to be wondered at," gerundive of Latin stupere "be stunned, be struck senseless, be aghast, astounded, or amazed" (see stupid). Related: Stupendously; stupendousness.
stupid (adj.)youdaoicibaDictYouDict
1540s, "mentally slow, lacking ordinary activity of mind, dull, inane," from Middle French stupide (16c.) and directly from Latin stupidus "amazed, confounded; dull, foolish," literally "struck senseless," from stupere "be stunned, amazed, confounded," from PIE *stupe- "hit," from root *(s)teu- (1) "to push, stick, knock, beat" (see steep (adj.)). Related: Stupidly; stupidness.

Native words for this idea include negative compounds with words for "wise" (Old English unwis, unsnotor, ungleaw), also dol (see dull (adj.)), and dysig (see dizzy (adj.)). Stupid retained its association with stupor and its overtones of "stunned by surprise, grief, etc." into mid-18c. The difference between stupid and the less opprobrious foolish roughly parallels that of German töricht vs. dumm but does not exist in most European languages.
stupidity (n.)youdaoicibaDictYouDict
1540s, "want of intelligence," from Latin stupiditatem (nominative stupiditas) "dullness, stupidity, senselessness," from stupidus "confounded, amazed; dull, foolish" (see stupid). It also at various times meant "lack of feeling or emotion" (1560s); "stupor, numbness" (c. 1600).