Early-attested site in the Parish of Exminster
- Tuz Seinzton 1242 Fees792
- Tuzseinteston, Tusseynston 1246 FF
- Touceynston 1301 Ipm
- Touseyneston 1303 FA 1324 Ipm
- Towsyngton 1465 Pat
This place derives its name from the family of Lucas de Tuz Seinz , who held the manor in 1242 (Fees).