An archaic or variant form; possibly related to molt or melt, meaning to shed or dissolve.
Possibly from 'be-' + 'molt' (from Latin 'mutare', meaning to change). The etymology is uncertain, as this appears to be a very rare or possibly nonce word.
Some words in historical texts appear so rarely that scholars can't determine their exact meaning or even confirm they were real words rather than scribal errors—'bemolt' may be one of those mysteries of medieval English.
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