Swaðrian
Bosworth & Toller Anglo-Saxon Old English Dictionary - swaðrian
According to the Old English Dictionary:
swæðorian;
- swaðrian
- p ode To retreat, withdraw, subside :-- Geofon swaðrode . . . geótende gegrind grund eall forswealg, Andr. Kmbl. 3169; An. 1587. Hærn eft onwand . . . wædu swæðorodon, 1066; An. 533. Brimu swaþredon, ðæt ic sǽnæssas geseón mihte, Beo. Th. 1145; B. 570.