From Wiktionary, the free dictionary
rufen + Fall, literally “calling case”.
Ruffall m (strong, genitive Ruffalles or Ruffalls, plural Ruffälle)
- (chiefly in the singular, dated) Synonym of Vokativ
- Coordinate terms: Nennfall, Zeugefall, Gebefall, Klagefall
Declension of Ruffall [masculine, strong]