smart
Function: intransitive verb
Etymology: Middle English smerten, from Old English smeortan; akin to Old High German smerzan to pain
Date: 13th century
1: to cause or be the cause or seat of a sharp stinging pain; also : to feel or have such a pain
2 a: to feel or endure distress, remorse, or embarrassment
b: to pay a heavy or stinging penalty

from a brochure on fire prevention