Glare

The various definitions for glare provided by the AHD include fairly strong words: 

"verb. 1. To stare fixedly or angrily. 2. To shine intensely and blindingly. 3. To be conspicuous; stand out obtrusively. noun. 1. A fierce or angry stare. 2a. An intense, blinding light. b. Garish or showy brilliance; gaudiness."

These descriptive definitions are particularly interesting when the word's etymology is taken into consideration. Glare comes to English through Middle English as glaren with the meaning "to glitter," and is said to be "akin" to the Middle Low German word glaren, "to glisten" (AHD): such seemingly mild origins for such a harshly defined word.