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aghast

[ uh-gast, uh-gahst ]
/ əˈgæst, əˈgɑst /
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adjective
struck with overwhelming shock or amazement; filled with sudden fright or horror: They stood aghast at the sight of the plane crashing.
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Origin of aghast

1225–75; Middle English agast frightened, past participle of agasten, equivalent to a-a-3 + gasten,Old English gǣstan to frighten, earlier *gāstjan<Germanic causative *gaistjan;see ghost
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use aghast in a sentence

British Dictionary definitions for aghast

aghast
/ (əˈɡɑːst) /

adjective
(postpositive) overcome with amazement or horror

Word Origin for aghast

C13: agast, from Old English gæstan to frighten. The spelling with gh is on the model of ghastly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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