woodwallwoodwall means the yaffle bird; the European green woodpecker. Lexicurio rates it Sui generis — a strength score of 88 out of 100.EtymologyFrom Middle English wodewale, of uncertain origin, probably from Old English, but perhaps from Middle Dutch wedewale with 1st element reanalyzed as from Middle English wode (“wood”).nounThe yaffle bird; the European green woodpecker.