stablemate

[ stey-buhl-meyt ]

noun

1. a horse sharing a stable with another.
2. one of several horses owned by the same person.
3. Informal. a person or thing originating from or belonging to the same establishment, field, etc., as another.

Word History and Origins

Origin of stablemate¹

First recorded in 1925–30; stable ¹ + mate ¹