English
rascalism
From rascal + -ism.
Formed from rascal + -ism
Old French rascaille ‘outcast, rabble’
Middle English rascaile ‘people of the lowest class, rabble of an army’
English rascal
Today it means
noun The behaviour of a rascal; villainy.
Language periods are conventional ranges, not dates for this word.
Etymograph / rascalism