GLOWER

v. & n.

--v.intr. (often foll. by at) stare or scowl, esp. angrily.

--n. a glowering look.

Derivatives:

gloweringly adv.

Etymology: orig. uncert.: perh. Sc. var. of ME glore f. LG or Scand., or f. obs. (ME) glow stare + -ER(4)