The verb glower, “to look or stare with sullen dislike” comes from Middle English gloren [or] glouren “to shine, gleam, glow, stare, stare at fixedly.” The Middle English forms are mostly from the north (Yorkshire) and Scotland. [T]he sense “to stare at fixedly” is Scottish. The source of gloren and glouren is obscure but, possibly, Scandinavian, e.g., Icelandic [as] glóra “to glow (like a cat’s eyes)” [or] Swedish and Norwegian dialect glora “to glow, stare.” The source of gloren [and] glouren may also be from Middle Low German glūren “to be overcast” or Dutch glueren “to leer, peep.” Glower entered English in the 15th century.
This is very similar to our “glaring at someone” which has its roots in Middle English, Middle Dutch and Middle Low German.
I’ve been doing a lot of glowering and glaring, lately. The whole world has gone insane-stupid. ~Vic
The deer in this town are so used to not being hunted, they will come out in broad daylight, eat, play and stare at you. Some are almost tame and you can get rather close to them. They’re cute but, they will mess up a garden if it is not properly secured. I learned the hard way not to plant tulips and I discovered that they like green/white Hosta but, not the green/yellow. They will not touch Narcissus. ~Vic