What is "odo"

Odo , played by René Auberjonois, is a fictional character in the science fiction television series Star Trek: Deep Space Nine. He is a member of a shapeshifting race called Changelings and serves as the head of security for the space station Deep Space Nine on which the show is set. Intelligent, observant and formidable, Odo uses his unique abilities to maintain security on the DS9 station and, later, aids the Bajoran people and the Federation throughout the Dominion War against his own people, the Founders.

Odo is a name typically associated with historical figures from the Middle Ages and before. Odo is etymologically related to the names Otho and Otto, and to the French name Odon and modern version Eudes, and to the Italian names Ottone and Udo; all come from a Germanic word meaning "possessor of wealth".