The act or process of providing auxiliary support or aid; assistance or supplementary help.
From 'auxiliate' (to aid) + '-tion' (act of). A rare nominalization of an already-rare verb, found primarily in specialized or archaic texts.
Words like 'auxiliation' reveal the hidden architecture of English—we can mechanically build it from Latin roots, but if nobody uses it, it remains a 'ghost word' that dictionaries record but speakers ignore.
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