Yrða

yrmlingr

nafnorðkarlkyn
m. [ormr], a wormling,’ little snake, young snake, Rm., Korm. 82, Fms. vi. 350, x. 325, Stj. 97.
II. hence prob. is corrupted the mod. yrlingr, a foxs cub; tón-yrlingr.