Although the second paragraph of the standard text of "Aleinu" today includes the phrase "le-taqen olam" לתקן עולם (to fix the world), some scholars suggest that the original text had "le-taken olam" לתכן עולם (spelled with a kaf, not a quf). One can see the "kaf" reading in the text of Siddur Rav Saadiah Gaon, in the Yemenite ritual, and in fragments from the Cairo Genizah. While the verb t-q-n can mean to fix, repair, prepare, or establish, the meaning of t-k-n would more strictly mean to establish, yielding the interpretation "to establish a world under the kingdom of God." In either case, "Aleinu" originally would have meant to establish God's sovereignty over the whole world.