Webster’s Revised Unabridged Dictionary · 1913
Rumple
Rum′ple, v. t. & i. [imp. & p. p. Rumpled p. pr. & vb. n. Rumpling.] [Cf. rimple, and D. rimpelen to wrinkle, rompelig rough, uneven, G. rümpfen to wrinkle, MHG. rümphen, OHG. rimpfan, Gr. ρἅμφος the crooked beak of birds of prey, ῥέμβεσθαι to roam.] To make uneven; to form into irregular inequalities; to wrinkle; to crumple; as, to rumple an apron or a cravat.
They would not give a dog's ear of their most rumpled and ragged Scotch paper for twenty of your fairest assignats. Burke.
Rum′ple, n. A fold or plait; a wrinkle. Dryden.