The state of being thoroughly dazed or confused; complete bewilderment.
From 'bedaze' plus the suffix '-ment,' which forms nouns meaning a state or condition. This suffix derives from Old French and Latin '-mentum,' used in English to nominalize verbs (e.g., amazement, bereavement).
The '-ment' suffix is one of English's most productive noun-forming tools—it turns feelings and conditions into countable things we can discuss. You could have 'moments of bedazement' just like 'moments of amazement,' showing how affixes create whole families of related words.
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