TgJ Jud3:24 :בְרַם עָבֵיד הוּא יָת צוּרכֵיה בְאִדְרוֹן בֵית קֵיטָא‏ : surely he must be doing his necessary thing (i.e. toilet) in the private room of the summer palace
See the entire entry for byt@qyṭ n.m. summer house