From Wiktionary, the free dictionary
Diminutive of caile. Compare the much more common caileag.
cailin f (genitive singular cailine, plural cailinean)
- (poetic) maiden, girl, young woman
- Synonyms: ainnir, gruagach, maighdeann, nighean, òigh
Guma slàn a chì mi mo chailin dìleas donn- Well may I behold my faithful brown-haired girl
