Cnossian

According to the Old English Dictionary:

he cnossaþ;

cnossian

p. ode; pp. od To beat, strike, dash; tundi, quassari, illidi :-- Yða gewealc mec oft bigeat, æt nacan stefnan, ðonne he be clifum cnossaþ the rolling of the waves has often caught me, at the vessel's prow, when it strikes on rocks, Exon. 81b; Th. 306, 15; Seef. 8. cnossian