An alternative Germanic etymology from *"eburaz" ('boar'; cf. ON "jofurr", or Ger. "Eber") has also been proposed. Xavier Delamarre points out that coins of the "Aulerci Eburovices", in Normandy, show the head of a wild boar, and argues that there might have been, further northeast, a "semantic contamination, in the mixed Germano-Celtic Rhenish areas, of the Gaulish "eburos" by the Germanic quasi-homonym "*eburaz"." Joseph Vendryes saw a Celtic 'boar-god' "*epro" behind the name of the yew, and it has been noted that the boar and the yew are both associated with concepts of lordship and longevity in the Germanic and—to a lesser extent—Celtic traditions, which may provided a reason for such a "contamination".