cuck

(slang) To cuckold or cuckquean, to be sexually unfaithful towards.

(slang, offensive) To weaken or emasculate, to render pathetic.

(slang, offensive) To fool and thus lower the status of, to exploit the trust or tolerance of (to one's own benefit and the other's disadvantage); to make into a cuck (one who acts against their own interests).

(slang) To turn into a cuckold or cuckquean, to cheat with the partner of (someone).

(no longer used) To punish (someone) by putting them in a cucking stool.

(slang, offensive) A cuckold or cuckquean.

(slang, offensive) A weakling.

(slang, offensive) One who meekly and submissively acts against their own interests, or those of their own race, gender, class, religion, etc.