Other forms: glowering, glowers
To glower is to stare angrily at somebody. Glower at him, a glowering look, glowering in the corner.
It is a sustained look rather than a glance, which is what makes it more menacing than a glare. Of a sky it means dark and threatening, so glowering clouds are the ones before a storm.
1verbglowerTo stare angrily at somebody.
“The old man glowered at the children who had kicked their ball into his garden.”
glower is a staring.
Also accepted in games: glare
Probably a Scots alteration of Middle English gloren, to stare or glare.
Middle English
gloren
English, today
glower
Built from
From an alteration (possibly Scots) of glore, from Middle English gloren, glouren (“to gleam; to glare, glower”); or from glow (“to stare”) obsolete, and ultimately from a Scandinavian (North Germanic) language. Cognate with Low German gloren (“to flicker; to glimmer”), Dutch gloren, Icelandic glóra. by surface analysis, glow + -er. See more at glare.
Etymology from Wiktionary, CC BY-SA