The Collaborative International Dictionary
Rudesby
Rudesby \Rudes"by\, n. [Etymol. uncertain.]
An uncivil, turbulent fellow. [Obs.]
--Shak.
Douglas Harper's Etymology Dictionary
rudesby
"insolent person," 1560s, mock surname from rude + -by, common place-name (and thus surname) ending element, as in Grimsby, Rigby. Similar formations in idlesby, sneaksby "paltry, sneaking fellow" (1570s), suresby.
Wiktionary
rudesby
n. (context archaic English) A rude person