Ruck
RUCK, verb transitive [Latin rugo, to wrinkle, to fold; ruga, a fold.]
1. To cower; to bend and set close. [Not in use.]
2. To wrinkle; as, to ruck up cloth or a garment.
[In this sense, the word is still used by the common people of New England.]
RUCK, noun A wrinkle; a fold; a plait.