Synonyms for Rumple (same or very similar meaning)
WordNet sense 1 (disturb the smoothness of):
ruffle, ruffle upWordNet sense 2 (to gather something into small wrinkles or folds):
cockle, crumple, knit, puckerWordNet sense 3 (become wrinkled or crumpled or creased):
crease, crinkle, wrinkleFrom the ODE community, based on WordNetadd/edit