Early-attested site in the Parish of Ashwater
- Quidhiwis 1249 Ass
- Quidhiwische 1318 Exon
- Quydiche 1609 FF
- Cowditch 1765 D
This is probably a compound of OE cwēad , 'dung, filth,' and hiwisc, 'land to support a family,' hence perhaps 'dirty land' or 'well-manured land.'Cf. Quidhampton (PN W 138), Quidhampton (Ha), Quedamtone 1337 Ch, and Quither infra 216.