Words that come from Proto-Georgian-Zan rḳina-

4 words across 3 languages descend from Proto-Georgian-Zan rḳina- — including რკინაჲ, რკინა, ერკინა, რკინიგზა.

See the etymology of rḳina- itself →

Georgian (2)

Old Georgian (1)

Laz (1)