What is the meaning of þei?

Romanization of 𐌸𐌴𐌹

Third-person plural pronoun: they

Third-person singular pronoun: they

those

Brink, Daniel (1992) “Variation between <þ-> and <t-> in the Ormulum”, in Irmengard Rauch, Gerald F. Carr and Robert L. Kyes, editors, On Germanic Linguistics: Issues and Methods (Trends in Linguistics. Studies and Monographs; 68), De Gruyter Mouton, →DOI, →ISBN, pages 21-35.

Thurber, Beverly A. (2011 February 15) “Voicing of Initial Interdental Fricatives in Early Middle English Function Words”, in Journal of Germanic Linguistics, volume 23, number 1, Cambridge University Press, →DOI, pages 65-81.

thei, pron.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.

Alternative form of þi (thy)

Alternative form of þe (thee)

Alternative form of þigh (thigh)

Alternative form of þouȝ (though)

Alternative form of þouȝ (though)

Alternative form of tweyn (two)

Source: wiktionary.org