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.