Feminine passive participle of quwts in its original sense; a forelock (as shorn) -- lock.
see HEBREW quwts
H6977. qevutstsoth
[קְוֻצּוֺת] noun feminine plural locks of hair (√ obscure; Late Hebrew id.; Syriac , PS3556; Arabic hair over forehead); — suffix קְוֻצּוֺתַי Song of Solomon 5:2, תָיו- 5:11.