As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- u, f. puss, the pet name of a cat. kisu-gras, n., botan. echium vulgare, viper’s bugloss.
Possible runic inscription in Younger Futhark:ᚴᛁᛋᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements