Targum on I Kings 16:9: Onkelos Aramaic Translation

וַיִּקְשֹׁ֤ר עָלָיו֙ עַבְדּ֣וֹ זִמְרִ֔י שַׂ֖ר מַחֲצִ֣ית הָרָ֑כֶב וְה֤וּא בְתִרְצָה֙ שֹׁתֶ֣ה שִׁכּ֔וֹר בֵּ֣ית אַרְצָ֔א אֲשֶׁ֥ר עַל־הַבַּ֖יִת בְּתִרְצָֽה׃

And his servant Zimri, captain of half his chariots, conspired against him; now he was in Tirzah, drinking himself drunk in the house of Arza, who was over the household in Tirzah;