ラテン語ambigō迷う・ためらうto waver or doubtこの語源をもつ英単語ambiguateambiguationambiguity曖昧さambiguous曖昧なambiguously曖昧にdisambiguate明確にするdisambiguation意味の明確化unambiguity明確さunambiguous明確なunambiguously明確に