出典:Wiktionary
出典:『Wiktionary』 (2026/03/02 03:01 UTC 版)
From Proto-Italic *rougjō. Per De Vaan, related to Ancient Greek ἐρεύγομαι (ereúgomai, “to roar”), ὀρῠμαγδός (orŭmagdós, “noise”), ὠρῡγή (ōrūgḗ, “noise, roaring”), and possibly related to rū̆dō (“(of lions) to roar; (of donkeys) to bray”). Despite the phonetic similarity to ērūgō (“to belch”), De Vaan thinks cognacy is unlikely, viewing the semantics as a poor match (although Greek ἐρεύγομαι (ereúgomai) also means "to belch"; De Vaan considers this a homophone). Perhaps from Proto-Indo-European *h₁rewg- (“to roar”).
rū̆giō (present infinitive rū̆gīre, perfect active rū̆gīvī or rū̆giī); fourth conjugation, no passive, no supine stem