plicated
corrugated
crease
creased
crimp
crimped
crisp
dog-ear
dog-eared
double
double over
doubled
enfold
flexible
flounce
flounced
flute
fluted
fold
fold over
foldable
folded
folding
folk
frill
gather
gathered
infold
interfold
lap over
plait
plaited
plat
pleat
pleated
pliable
plicatile
ply
quill
quilled
ruff
ruffle
ruffled
tuck
tucked
turn over
twill
fold up
turn up