An archaic or obsolete term, possibly a variant spelling of 'errant' (wandering) or related to medieval knighthood terminology.
Possibly from Old French 'errant' (wandering, traveling), this term appears sporadically in medieval texts with unclear modern meaning or usage.
Some words are so obscure that even scholars debate whether they're spelling variants or entirely different terms—'eyrant' is a lexical mystery waiting for its detective!
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