Undir-haka

Meaning of Old Norse word "undir-haka"

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

undir-haka

u, f. an under-cheek, double-chin.

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