rugio

Etymology
Per De Vaan, related to 🇨🇬,, , and possibly related to. Despite the phonetic similarity to, De Vaan thinks cognacy is unlikely, viewing the semantics as a poor match (although Greek also has the meaning "belch", which De Vaan considers a homophone). Perhaps from.

Pronunciation

 * The u in the first syllable is marked short by Lewis and Short as well as Gaffiot, but long by De Vaan (2008) and Wartburg (1928–2002). Buchi and Schweickard say that although the Romance outcomes require the reconstruction of Proto-Romance */u/ (as if from long ū), the quantity of the vowel in written Latin is uncertain.
 * The u in the first syllable is marked short by Lewis and Short as well as Gaffiot, but long by De Vaan (2008) and Wartburg (1928–2002). Buchi and Schweickard say that although the Romance outcomes require the reconstruction of Proto-Romance */u/ (as if from long ū), the quantity of the vowel in written Latin is uncertain.

Verb

 * 1)  to roar, bellow; rumble
 * 2)  to bray
 * 1)  to bray