Nouns

(n)pucker, ruckan irregular fold in an otherwise even surface (as in cloth)

Verbs

(v)pucker, rumple, cockle, crumple, knitto gather something into small wrinkles or folds“She puckered her lips”
(v)gather, pucker, tuckdraw together into folds or puckers
(v)pucker, ruck, ruck upbecome wrinkled or drawn together“her lips puckered”