Liðka

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

liðka

að, [liðugr], to make smooth and easy.

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