Type Word Usage Old Irish Meaning & History Old Irish word meaning "slender". Related ItemsDetails Given Name DescendantsKiley, Kyla, Kyle, Kylee, Kyleigh, Kylie, Chile, Kilie(English) Caoilfhionn, Keelin, Caoileann, Caoilinn(Irish) Cáel(Irish Mythology) Cáelfind(Old Irish) Surname DescendantsKyle, Kyles(Scottish)