Peanuts

Peanuts is the name Boxey calls the daggit (dog) during a deleted scene from "Saga of a Star World".

The daggit is the exact same animal as Muffit, suggesting two things:

1. Peanuts is the name of the actual dog who portrayed the original Muffit (not the drone daggit), meaning that the dialogue would later be redubbed by Noah Hathaway; or,
2. Peanuts is the original name of Muffit, before it was changed later on.

Original Series definition: a domesticated canine, e.g. dog (see: daggit)

Original Series definition: a term for a robot, such as Muffit II ^{(TOS: "Saga of a Star World")}