An Etymological Dictionary of Astronomy and Astrophysics

A low, sinuous tectonic ridge on a planetary surface that resembles a wrinkle in skin or cloth. These features were first detected on the Moon, but they have also been identified on other planetary bodies such as Mars, Mercury, and Venus.

Etymology (EN): M.E., back formation from wrinkled, from O.E. gewrinclod “wrinkled, crooked,” p.p. of gewrinclian “to wind, crease,” from perfective prefix ge- + -wrinclian “to wind;” → ridge

Etymology (PE): Ruk, → ridge; corukdâr, from coruk “wrinkle” + dâr “having, possessor” (from dâštan “to have, to possess,” Mid.Pers. dâštan, O.Pers./Av. root dar- “to hold, keep back, maitain, keep in mind;” cf.
Skt. dhr-, dharma- “law;” Gk. thronos “elevated seat, throne;” L. firmus “firm, stable;” Lith. daryti “to make;” PIE *dher- “to hold, support”).