From an alteration (due to words ending in -ish: abolish, banish, cherish, establish, furnish, etc.) of earlier astony, astone, aston, astun ‎(to astonish, confound, stun), from Middle English astonien, astunien, astonen, astunen, astounen ‎(to astound, stun, astonish), from Old English *āstunian, from ā- ‎(perfective prefix) + stunian ‎(to make a loud sound, crash, resound, roar, bang, dash, impinge, knock, confound, astonish, stupefy), from Proto-Germanic *stunōną ‎(to sound, crash, bang, groan), from Proto-Indo-European *(s)ten-, *(s)ton- ‎(to thunder, roar, groan), equivalent to a- +‎ stun. Compare German erstaunen ‎(to astonish, amaze). Influenced by Old French estoner, estuner, estonner ‎(to stun), either from an assumed Latin *extonare, or from Old Frankish *stunen ‎(to stun), related to Middle High German stunen ‎(to knock, strike, stun) and thus also to the Old English word above.



astonish ‎(third-person singular simple present astonishes, present participle astonishing, simple past and past participle astonished)

  1. surprise, flabbergast

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