Definition from Wiktionary, the free dictionary
Alternative forms 
- (now UK dialectal) Other.
- an' they left one'n the sarvant gals as well for comp'ny for the housekeeper, but the tother sarvant gals they took wid 'em. — The Robber and the Housekeeper.
Usage notes 
- Originally preceded by the. The spelling t'other arose from the misconception of being a contraction of the other.