As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- or treina, d, to use sparingly, esp. of food, so as to make it last longer; treyna sér e-t.
Possible runic inscription in Younger Futhark:ᛏᚱᛁᚢᚾᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements