出典:Wiktionary
From Middle English blindly, blyndly, from 古期英語 blindlīċe (“in a blind manner; blindly; rashly”), equivalent to blind + -ly. Cognate with Swedish blindligt (“blindly”), Icelandic blindlega (“blindly”). Compare also West Frisian blindich (“blindly”), Dutch blindelings (“blindly”), German blindlings (“blindly”).
blindly (comparative more blindly, superlative most blindly)