IPA: /kæd/
KK: /kæd/
A man who behaves in a dishonorable or unprincipled way, especially towards women.
He was known as a cad for his treatment of his former partners.
Cad is derived from the Latin word 'cadere' (meaning to fall). The term 'cad' refers to a person who behaves dishonorably, particularly in romantic contexts, suggesting a fall from moral standards.
Think of someone who has 'fallen' ('cadere') from good behavior — that's why 'cad' refers to a dishonorable person.