cheeseburger (n.)youdaoicibaDictYouDict
1938, American English, from cheese (n.1) + ending abstracted from hamburger.
sideburns (n.)youdaoicibaDictYouDict
1880, American English, alteration of burnsides (q.v).
sideburnyoudaoicibaDictYouDict
"A strip of hair grown by a man down each side of the face in front of his ears", Late 19th century: originally burnside, from the name of General Burnside (1824–81), who wore sideburns.