A senex amans (from Latin: "aged lover", "amorous old man") is a stock character of classical Greek and Roman comedy, medieval literature (e.g., fabliau) and drama. It is an old jealous man married to a young woman and thus often an object of mockery. He is variously ugly, impotent, puritanical, and foolish to be cuckolded by a young and handsome man. Often the term "senex amans" is applied to the very motif involving the three.
The senex amans is not always a one-dimensional figure presented for derision. The morality within the tale itself is somewhat ambiguous, with the corrosive irony directed at January coupled with a more generalised sympathy and understanding.