Something ancient or antique; an old or obsolete thing (mostly used in formal or academic Latin contexts).
From Latin 'antiquum' (neuter singular of 'antiquus,' meaning ancient or old), used in academic and formal writing when referencing ancient times or objects.
Scholars and historians use 'antiquum' in formal Latin phrases to sound authoritative about old things—it's the fancy way of saying 'ancient stuff' that makes you sound like you belong in a university library.
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