Feminine active participle of kathar; the capital of a column -- chapiter.
see HEBREW kathar
H3805. kothereth
כּוֺתֶ֫רֶת כֹּתֶ֫רֶת, noun feminine capital of pillar (as surrounding, crowning its top ?); — absolute כֹּתֶרֶת 1 Kings 7:16 (twice in verse) + 10 t.; הַכּוֺתֶרֶת Jeremiah 52:; plural absolute, כֹּתָרֹת 7:16 7t., כֹּתָרוֺת2 Chronicles 4:12 (twice in verse); 4:13; — capitals of pillars יָכִין and בֹּעַז 1 Kings 7:16 (3 t. in verse) + 12 t. 1 Kings 7 2 Chronicles 4:12 (twice in verse); 4:13; 2 Kings 25:17 (3 t. in verse) = Jeremiah 52:22 (3 t. in verse).