The Collaborative International Dictionary
drabcloth
Drab \Drab\, n. [F. drap cloth: LL. drappus, trapus, perh. orig., a firm, solid stuff, cf. F. draper to drape, also to full cloth; prob. of German origin; cf. Icel. drepa to beat, strike, AS. drepan, G. treffen; perh. akin to E. drub. Cf. Drape, Trappings.]
A kind of thick woolen cloth of a dun, or dull brownish yellow, or dull gray, color; -- called also drabcloth.
A dull brownish yellow or dull gray color.
Wiktionary
drabcloth
n. drab (kind of fabric)