One who provides auxiliary support or assistance; a helper or aid in a supporting capacity.
From 'auxiliate' (to aid) + '-or' (one who does). Following Latin agentive noun patterns, though this word is extremely rare in actual usage.
For every '-or' agent noun like 'auxiliator,' English speakers prefer shorter alternatives—we say 'helper' not 'helpor,' showing our language constantly chooses simplicity over logical consistency.
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