move to and fro, to rock
*rukkōn-
Vmove to and fro, to rock
Source: Kroonen 2013:417ParadigmsWords originating from this oneOE roccian 'move to and fro, to rock' (rukkōn- > rukkōjan > rokkōjan > rokkian) through pgmc-to-oe(source: Kroonen 2013:417)