Slakna

Meaning of Old Norse word "slakna"

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

slakna

að, to slacken, get slack.

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