Tregarthen Family History
Tregarthen Surname Meaning
from Tregarton in Goran (Cornwall) or perhaps from Tregath in Lanteglos (Cornwall). The former place-name is from Cornish tre(v) ‘farmstead’ + the attested male given name Ylcerthon; the latter probably has the same origin.
It is unclear whether any examples of the surname are derived from Tregarthen in Ludgvan (Cornwall) or Tregerthen in Zennor (Cornwall).
Source: The Concise Oxford Dictionary of Family Names in Britain, 2021
