A rare or archaic term possibly meaning something found or invented for the first time, or a discovery.
From Latin 'ad-' (to) + 'inventio' (finding, invention). This appears to be a very rare compound with unclear historical usage.
This word barely exists in any dictionary and seems invented by scholarly wordplay—it's exactly the kind of word that Latin could theoretically make but nobody actually used, like a language's equivalent of a design that never got manufactured.
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