APPENDIX I “HERICIO, ERICIO, HERITO, HERISSON”
Reading edition
This is derived from the French word hérisson, a hedgehog, and should mean something bristling, perhaps with thorns or osiers. Several passages show that it was a defence on the counterscarp of the ditch, and it may sometimes have been a hedge. Cohausen, Befestigungen der Vorzeit, shows that hedges were frequently used in early fortifications (pp. 8-13). The following passages seem to show clearly that it was on the counterscarp of the ditch: “[Montreuil] il a bien clos, esforce e ferme de pel e hericon.” (Wace, 107.) “Reparato exterioris Ardensis munitionis valli fossato et amplificato, et sepibus et ericiis consepto et constipato.” (Lambert of Ardres, 623, circa 1117.) The French poem of Jordan Fantosme, describing the siege of Wark by the Scots in 1174, says the Scots attacked and carried the hericon, and got into the ditch, but they could not take the bayle, i.e., they could not get over the palicium.