α. Middle English þaire self, Middle English þaire selue, Middle English þaire-seluen, Middle English þaire seluyn, Middle English þairself, Middle English þair-self, Middle English þair-selven, Middle English þer selfe, Middle English there selff, Middle English ther self, Middle English ther selfe, Middle English theyrself, Middle English theyr self, 1500s their selfe, 1500s theyr selfe, 1800s– theirself; U.S. regional 1800s– theirself, 1900s– theirselve, 2000s– their self; English regional 1900s– 'eirself (Oxfordshire), 1900s– therself (Hertfordshire); Scottish pre-1700 thairself, pre-1700 thair self, pre-1700 thairselff, pre-1700 thair selff, pre-1700 thair seluyn, pre-1700 thare-self, pre-1700 thare self, pre-1700 thar self, pre-1700 thar selff, pre-1700 their self, pre-1700 their selfe.
β. English regional 1700s 1900s– theirsel, 1700s– thersel, 1800s– theirsel' (Lancashire), 1800s– theirzel (Somerset), 1800s– theirzul (Somerset), 1800s– thersel' (Lancashire), 1800s– thersell (north-western), 1800s– therzul (Somerset), 1900s– theirsell (Lancashire); Scottish pre-1700 thair sell, pre-1700 thayr sell, pre-1700 thirsell, 1800s thairsel, 1800s thair-sel, 1800s their sel', 1800s theirsell, 1800s thirsel, 1800s thirsel', 1800s– theirsel', 1800s– theirsel, 1900s– thairsell, 1900s– thersel; Irish English 1900s– theirsel (northern).
γ. English regional 1800s theerseln (Lancashire), 1800s theirsel'n (Yorkshire), 1800s thessen (Lincolnshire), 1800s– theirseln (Yorkshire), 1800s– therseln (Yorkshire), 1800s– thersen, 1900s– theirsen (north midlands and northern), 1900s– their-sen (Buckinghamshire).