An archaic or obsolete term, possibly a variant or corruption of a word from classical or ecclesiastical Latin.
Unclear origin; possibly from Latin or a specialized medieval term, with very limited historical documentation of use.
When a word appears in only one or two historical texts and no one's quite sure what it means, it's like finding a ghost word—'dinus' might be a copyist's error, a regional dialect term, or a specialist jargon that vanished completely from the historical record.
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