Mere-þyssa

Selon le Dictionnaire Anglo-Saxon :

an;

mere-þyssa

m. A sea-rusher, a ship :-- On mereþyssan, Andr. Kmbl. 892; An. 446. On mereþissan, 514; An. 257. [Cf. Icel. þysja to rush; þyss uproar.] mere-þyssa