出典:Wiktionary
From Middle English letheren, from 古期英語 liþren, from Proto-Germanic *liþrīnaz (“of leather, leathern”), equivalent to leather + -en. Cognate with Scots letherin, lethrin, West Frisian learen, Dutch lederen, leren (“leathern”), German ledern (“leathern”).
leathern (not comparable)