TgJ Ez40:22 :וְכַווֹהִי וְאוּלַמוֹהִי וְכוֹתְרָתֵיה כְמִשחָת תַרעָא דִפתִיַח לְאוֹרַח מַדנְחָא‏ : its windows, halls, and capitals are in proportion to the gate opening toward the east
See the entire entry for kōṯrā, kōṯartā n.f. knob, capital