וְתָאֵ֨י הַשַּׁ֜עַר דֶּ֣רֶךְ הַקָּדִ֗ים שְׁלֹשָׁ֤ה מִפֹּה֙ וּשְׁלֹשָׁ֣ה מִפֹּ֔ה מִדָּ֥ה אַחַ֖ת לִשְׁלָשְׁתָּ֑ם וּמִדָּ֥ה אַחַ֛ת לָאֵילִ֖ם מִפֹּ֥ה וּמִפּֽוֹ׃
그 동문간의 문지기 방은 좌편에 셋이 있고 우편에 셋이 있으니 그 셋이 각각 한 척수요 그 좌우편 벽도 다 한 척수며
Rashi
תתאו is an expression denoting “a slanting turn”, just as in (1 Kings 14:28) “the slanting chamber (תא) of the runners" and (Ezekiel 40:10) “and the slanting chambers (תאי) of the gate”. The תא is a chamber with a sloping roof, which is called in O. F. apendiz; it is called תא because it leans and slopes (a lean-to or panthouse).