Did You Know?
In its very earliest uses in the 16th century, "surly" meant "majestic" or "lordly." These early meanings make sense when you know that this word is an alteration of Middle English "serreli," which probably comes from "sire, ser," a title formerly used as a form of address for men of rank or authority. So how did a word with such lofty beginnings come to be associated with grumbling rudeness? Arrogant and domineering behavior is sometimes associated with men of rank or position, and "surly" came to mean "haughty" or "imperious." These meanings (which are now obsolete) led to the "rude" sense that is very common today.