Treen Family History
Treen Name Meaning
Cornish: habitational name from places so named in the parishes of Zennor and St. Levan, both of which appear earlier in the form Trethyn, from Cornish tre ‘homestead’, ‘settlement’ + dyn ‘fort’. English: variant of Treece, from a form with the weak plural ending.
Source: Dictionary of American Family Names ©2013, Oxford University Press