from The American Heritage® Dictionary of the English Language, 4th Edition
- n.pl. Long sideburns worn with a clean-shaven chin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. long, bushy sideburns
After Lord Dundreary, a character in the play Our American Cousin by Tom Taylor.(American Heritage® Dictionary of the English Language, Fourth Edition)
An eponym given rise to by Lord Dundreary's hairstyle in Our American Cousin (Wiktionary)