crumple

crum·ple

1. To crush together or press into wrinkles; rumple.
2. To cause to collapse.

1. To become wrinkled.
2. To collapse: a regime that finally crumpled.

Origin: Middle English crumplen, probably frequentative of crumpen, to curl up; see crumpet .

Related Forms:

• crumply crumˈply adjective