In a suitable, proper, or fitting manner; appropriately (archaic usage).
From 'convenable' plus the adverbial suffix '-ly,' creating an archaic adverb that parallels 'suitably' or 'appropriately' in formal or legal medieval contexts.
This adverb appears in old English legal documents where precision mattered—writing that something was 'convenably done' meant it was not just right, but rightfully and formally correct.
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