Webster's 1913 Dictionary
RUGA
Ru "ga, n.; pl. Rugæ. Etym: [L.] (Nat. Hist. )
Defn: A wrinkle; a fold; as, the rugæ of the stomach.
RUGATE
Ru "gate, a. Etym: [L. rugatus, p.p. of rugare to wrinkle, fr. ruga a wrinkle. ]
Defn: Having alternate ridges and depressions; wrinkled. Dana.
New American Oxford Dictionary
rugalach
rug a lach |ˈrəgələKH ˈrəɡələx |(also rugelach ) ▶noun a bite-size cookie made with cream-cheese dough rolled around a filling of nuts, poppy seed paste, chocolate, or jam. ORIGIN Yiddish, literally ‘little twists. ’
Oxford Dictionary
rugalach
rug a lach |ˈrəgələKH ˈrəɡələx |(also rugelach ) ▶noun a bite-size cookie made with cream-cheese dough rolled around a filling of nuts, poppy seed paste, chocolate, or jam. ORIGIN Yiddish, literally ‘little twists. ’