Heáh-flód

According to the Old English Dictionary:

es;

heáh-flód

m. High tide [as opposed to neap tide], deep water :-- Heáhflód malina: népflód ledona, Ælfc. Gl. 105; Som. 78, 30, 29; Wrt. Voc. 37, 12, 11. Lét fleógan hrefn ofer heáhflód he let a raven fly over the deep water [of the deluge], Cd. 71; Th. 87, 1; Gen. 1442. [Cf. Icel. há-flæðr a high flood-tide.] heah-flod