出典:Wiktionary
From Middle English slouthe, slewthe, from 古期英語 slǣwþ (“sloth, indolence, laziness, inertness, torpor”), from Proto-Germanic *slaiwiþō (“slowness, lateness”), equivalent to slow + -th. Cognate with Scots sleuth (“sloth, slowness”).
slowth (uncountable)
slowth (uncountable)