Yet despite the gruff manner and partisan bluster, Frank is a deft and serious legislator.
Jamie Dimon, the gruff, silver-haired chief executive officer and chairman of JPMorgan Chase, is facing an unlikely challenge.
But beneath the gruff, sometimes combative demeanor was a man with heart, humor, and decency.
1530s, "coarse, coarse-grained," from Middle Dutch or Middle Low German grof "coarse (in quality), thick, large," of uncertain origin, regarded by some as related to Old English hreof, Old Norse hrjufr "rough, scabby," with Germanic completive prefix ga-. Sense of "rough, surly" recorded by 1690s. Related: Gruffness.