Fjǫlvǫr: Lit. ‘very cautious one’, from the adj. fjǫlvarr ‘very cautious’ (see also Note to l. 7 below). The name does not occur elsewhere, but cf. the m. form Fjǫlvarr in Hárb 16/1 (NK 80) með Fiǫlvari ‘with Fjǫlvarr’, where it may denote a giant.