Kjúka

As defined by the Cleasby & Vigfusson Old Norse to English dictionary:

kjúka

u, f. a kind of fresh soft cheese, ost-kjúka: blautr einsog kjúka, soft as a k., of a horse’s hoof; whence hóf-kjúka, the soft part of the hoof.

Possible runic inscription in Younger Futhark:ᚴᛁᚢᚴᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements