Billow

[Dan. bölge, Sw. bölja, Icel. bylgja, L. Ger. bülge, Ger. bulge, from the root belgen, to swell.] A great wave or surge of the sea, occasioned usually by violent wind.

Loud billows lash the sounding shore. Pope.

To swell; to rise and roll in large waves or surges. “The billowing snow.” Prior.