The action of forcing someone or something to leave a place, especially an institution or organization. The act of ejecting or banishing someone as a punishment or disciplinary measure.
From Latin 'expulsio', from 'expellere' meaning 'to drive out' (ex- 'out' + pellere 'to drive'). Entered English in the 14th century, initially used in medical contexts for bodily discharge, later extended to institutional and social contexts.
The word shares its Latin root 'pellere' (to drive) with 'propel', 'repel', and 'compel' - all words about force and movement. There's something almost physical in the very sound of 'expulsion', with that sharp 'x' and explosive 'p' that mirrors the violent act of being forced out.
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