As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- ja, m. [cp. Ulf. arbinumja], (poët.) an heir, Id. 28.
Possible runic inscription in Younger Futhark:ᛅᚱᚠ-ᚦᛁᚴᛁ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements