Thynne Family History
Thynne Surname Meaning
from Middle English thin ‘lean slender’ (Old English þynne). from Ó Teimheáin ‘descendant of Teimheán’ a personal name derived from a diminutive of teimh ‘dark’.
In this spelling th indicates a dental t rather than a fricative. Also anglicized as Teevan (where the earlier pronunciation of mh is retained).
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
