[əˈɡɑːst], (Adjective)

Definitions:
- filled with horror or shock
(e.g: she winced, aghast at his cruelty)


Phrases:

Origin:
late Middle English: past participle of the obsolete verb agast, gast ‘frighten’, from Old English gǣsten. The spelling with gh (originally Scots) became general by about 1700, probably influenced by ghost; compare with ghastly