GRUFF Meaning of GRUFF in English adj.1 a (of a voice) low and harsh. b (of a person) having a gruff voice. 2 surly, laconic, rough-mannered. Derivatives: gruffly adv. gruffness n. Etymology: Du., MLG grof coarse f. WG (rel. to ROUGH) Oxford English vocab. Оксфордский английский словарь. 2012