skellum

Etymology

From Danish skælm, from Middle Low German; cognate to German Schelm.

noun

A scoundrel.“Dr. Creeton, [Robert Creighton] the Scotchman, […] ripped up Hugh Peters (calling him the execrable skellum), his preaching and stirring up the maids of the city to bring in their bodkins and thimbles.”
A rogue.