the

From Middle English þe, from Old English þē m (“the, that”, demonstrative pronoun), a late variant of sē, the s- (which occurred in the masculine and feminine nominative singular only) having been replaced by the þ- from the oblique stem. replaced words, cognates Originally neutral nominative, in Middle English it superseded all previous Old English nominative forms (sē m, sēo f, þæt n, þā pl); sē is from Proto-West Germanic siz, from Proto-Germanic sa, ultimately from Proto-Indo-European *só. Cognate with Saterland Frisian die (“the”), West Frisian de (“the”), Dutch de (“the”), German Low German de (“the”), German der (“the”), Danish de (“the”), Swedish de (“the”), Icelandic sá (“that”) within Germanic and with Sanskrit स (sá, “the, that”), Ancient Greek ὁ (ho, “the”), Tocharian B se (“this”) among other Indo-European languages.

From Middle English the, thy, thi, from Old English þē̆, probably a neuter instrumental form ("by that, thereby")—alongside the more common þȳ and þon—of the demonstrative pronoun sē ("that"). Compare Dutch des te ("the, the more"), German desto ("the, all the more"), Norwegian fordi and Norwegian av di ("because"), Icelandic því (“the; because”), Faroese tí, Swedish ty.