Vǫðlu ‘of the Vaðla’: Several suggestions have been made about the identity of the Vaðla. Most likely it is the name of a river running from Farrisvannet to the coast at Larvik (Storm 1899, 116). It could alternatively be the name of the sea current in Oslofjorden between Borre and the island Bastøy (Brøgger 1924-6, 94), or a noun meaning ‘ford’ (cf. OIcel. vaðill) (Johnsen 1928, 132‑3).