Gylfra

Meaning of Old Norse word "gylfra"

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

gylfra

u, f. (gylfa), an ogre, a beast, a she-wolf (?); skal þá reyna hvárt meira má veita mér Pétr postuli ok hinn Helgi Hallvarðr, eðr hón gylfra in Gautska er þú trúir á, FmS. viii. 308, v. l. (the others read kýfla):—in the phrase, ganga gylfrum, to ‘go to the dogs,’ er þat helzt við orði, at gylfrum gangi vináttan, it is rumoured that your friendship is all gone to pieces, Band. (vellum MS.), where the Ed., ok er þat hætt við orði, at úmerkiliga þykki verða, 12 new Ed.

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