A person who helps or supports another person in their work or duties.
From Latin 'assistere' meaning 'to stand by' (ad- 'to' + sistere 'to stand'). The suffix -or denotes one who performs the action, creating a word for a helper or supporter.
The word 'assistor' is rare in modern English, having been largely replaced by 'assistant,' but it survives in legal and historical contexts—showing how English often keeps archaic words alive in specialized professional vocabularies.
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