'Gruff' definitions:

Definition of 'gruff'

From: WordNet
adjective
Brusque and surly and forbidding; "crusty remarks"; "a crusty old man"; "his curmudgeonly temper"; "gruff manner"; "a gruff reply" [syn: crusty, curmudgeonly, gruff, ill-humored, ill-humoured]
adjective
Deep and harsh sounding as if from shouting or illness or emotion; "gruff voices"; "the dog's gruff barking"; "hoarse cries"; "makes all the instruments sound powerful but husky"- Virgil Thomson [syn: gruff, hoarse, husky]

Definition of 'Gruff'

From: GCIDE
  • Gruff \Gruff\ (gr[u^]f), a. [Compar. Gruffer (gr[u^]f"[~e]r); superl. Gruffest.] [D. grof; akin to G. grob, OHG. gerob, grob, Dan. grov, Sw. grof, perh. akin to AS. rc['o]fan to break, Z. reavc, rupture, g- standing for the AS. prefix ge-, Goth. ga-.] Of a rough or stern manner, voice, or countenance; sour; surly; severe; harsh. --Addison. [1913 Webster]
  • Gruff, disagreeable, sarcastic remarks. --Thackeray. -- {Gruff"ly}, adv. -- {Gruff"ness}, n. [1913 Webster]