Proto-Baltic: *kul̃-n-a- m., *kul-n-i- c., *kul-n-ā̂ f., *kul̂n-iā̃ (1) f.; *kel-ia- c.
Meaning: a part of the leg
Lithuanian: kul̃na-s, kulnì-s 'Ferse, Hacke'; kelī̃-s, kẽli-s `Knie'
Lettish: kulna, kul̃ne 'Hacke, Ferse'; celis `Knie'
Old Prussian: kulnis V. 143 'Enkel, Knöchel am Fuss'