Gránvariðr

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

gránvariðr

pp. grey-coated (úlfar-varðir).

Possible runic inscription in Younger Futhark:ᚴᚱᛅᚾᚢᛅᚱᛁᚦᚱ