TgJ Ez1:15 :וְהָא גַלגַל חַד מִשתְוֵי כְמִלְרַע לְרוּם שְמַיָא‏ : here a single wheel appeared as if below the height of heaven [~MT וְהִנֵּה אוֹפַן אֶחָד בָּאָרֶץ]
See the entire entry for šwy vb. to be equal; D to put down