Trethewey Family History
Trethewey Name Meaning
Cornish: habitational name from several among nine places in Cornwall named from Cornish tre ‘homestead settlement’ + Thewi a lenited form of the personal name Dewi (equivalent to David ) such as Trethewey (Saint Levan) Trethevey (Lanlivery) and Trethevy (Saint Cleer). The surname Trethewey may occasionally have been confused with Treadaway .
Source: Dictionary of American Family Names 2nd edition, 2022