The quality or state of being carried away by emotion; passionate or vehement behavior or expression.
From French 'emportement' (loss of self-control, outburst) derived from 'emporter' (to carry away). This describes being so overwhelmed by feeling that you're literally 'carried away' by emotion.
This is a wonderfully specific word for that moment when emotion overwhelms you—historians used it to describe the French Revolution's passionate fervor, when entire nations were gripped by 'emportment'!
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