Definition & Meaning of "cad"in English

What is the origin of the term "cad" and how is it used?

"Cad" is an English term dating back to the late 18th to early 19th century, originally short for "cadet," referring to a young man of low social status. Over time, it developed a figurative sense for a dishonorable, selfish, or unscrupulous man, particularly one who mistreats women or behaves with bad manners. The word appears in literature, newspapers, and everyday speech of the 19th century to criticize male impropriety. It is derogatory, emphasizing moral failings and selfishness, but is relatively formal and not vulgar.