Where does “theirselves” come from?

theirselves (English) comes from English their, from Old Norse þeirra.

theirselves (English): Alternative form of themselves

Definitions

  1. Alternative form of themselves

Ancestry of “theirselves”, step by step

StepLanguageWordMeaning
1EnglishtheirBelonging to, from, of, or relating to, them;...
2Old Norseþeirra
Every word from Old Norse þeirraEvery word from English their
theirselves — Etymology, Origin & Word History | Etymology Explorer