Neit

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

neit

n. pl. flour, efflorescence, a απ. λεγ.; neit Menju góð, the costly flour of Menja, i. e. gold, Skv. 3. 50; the word remains, though with a false aspirate, in common Icel. hneita (q. v.), the white efflorescence on seaweed (söl); akin is the Icel. naut. phrase, það hnitar í báru (in a ditty of Pal Vídal.), the waves are white-tipped (as if sprinkled with flour); the explanation given in Lex. Poët., s. v. neit, is prob. erroneous.

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