A cudgel was a hand weapon used for close-quarters combat.
The Tellarite Tevrin Krit owned a cudgel that was sacred to his family. It had been passed down by his ancestors for over a hundred years, and Krit had planned to give it to his son. The cudgel was stolen by Harry Mudd after a dalliance with Krit's sister. Mudd still had it in his possession and was looking for a buyer while he was perpetrating a con using android duplicates of himself. (ST: "The Escape Artist")