The etymology of "villain" can be traced back to the Old French word "vilain," which originally meant a peasant or a commoner. Over time, the term evolved to refer to someone who was considered morally reprehensible or wicked.
literally "someone born in a villa"

The word "sinister" comes from the Latin word "sinister," which means "left" or "on the left side." It acquired its negative connotation over time, as left-handedness was often associated with being unlucky or evil in various cultures.

noble (adj.)
c. 1200, "illustrious, distinguished, of high rank or birth," from Old French noble "of noble bearing or birth," from Latin nobilis "well-known, famous, renowned; excellent, superior, splendid; high-born, of superior birth," earlier *gnobilis, literally "knowable," from gnoscere "to come to know" (from PIE root *gno- "to know"). The prominent Roman families, which were "well known," provided most of the Republic's public officials.