See also: Roño Old High German Etymology From Proto-West Germanic *hrunō. Noun rono m treetrunk Declension More information case, singular ... Declension of rono (masculine n-stem) case singular plural nominative rono ronon, ronun accusative ronon, ronun ronon, ronun genitive ronen, ronin ronōno dative ronen, ronin ronōm, ronōn Close Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads