[7] í tyfrum ‘in magic potions’: The sense of tyfr, which is a hap. leg., is conjectural. It may be related in sense to ON tívurr, only found in Vsp 31/2, probably in the sense ‘sacrifice’ (cf. OE tīfer, tīber ‘sacrifice’, OHG zebar ‘sacrificial animal’; AEW: tívurr).