v. Obs. rare. [Of obscure origin.] intr. To frown or scowl. So † Snowring vbl. sb. and ppl. a. Obs.
c. 1440. Alph. Tales, 326. And if þou be wed þou may happen wed a shrew at will be þi maister, and þou bus suffer many grete wurd & say nothyng agayn, & hafe a snowryng cowntenance.
1508. Mayd Emlyn, 177, in Hazl., E. P. P., IV. 89. Whan she dothe loure, And begynneth to snowre.
1562. J. Heywood, Prov. & Epigr. (1867), 210. Small diffrence betweene lowryng and snowryng.