ODO: Well, as you know, when Doctor Mora first brought me to his laboratory, it was under Cardassian supervision. All specimens had to be clearly labelled in Cardassian, so the overseers would always know what the scientists were working on. Since no one was exactly sure what I was, Mora labelled me Unknown Sample, which the overseer translated into Cardassian as Odo'ital.
KIRA: So, your name is Unknown Sample?
ODO: No, no. Odo'ital literally means the word 'nothing'. Even after it became clear that I was sentient, the Bajoran scientists kept calling me that. As a joke, they split it into two words like a Bajoran name, Odo Ital, which eventually got shortened.