Trenedros (EN) / Trevudrys (KW)

Type: 
Settlement
Parish: 
St Erth
Hundred: 
Penwith
Notes: 
An alternative possibility is ‘entangled’, based on Welsh nidro ‘to entangle’ with Cornish <-ys> past participle suffix.
Elements: 

Iudris

This refers to the name of a person: 
name

trev

Meaning: 
farmstead
Elements notes: 
trev 'farmstead, settlement' + Iudrys 'Old Welsh Iudris (iudd ‘lord’ + ris ‘ardent’
Historic forms: 
Trenudros 1301, Trenudrys 1356, Trenudrys, Trenuddrys 1523.