TgJ Mi7:19var. :יִכבוֹש עַל חוֹבַנָא בְרַחמְתֵיה/ברחמנותֵה/‏ : he shall subdue [MT: יִכְבֹּשׁ] our sins with his mercy †
See the entire entry for raḥmānū, raḥmānūṯā n.f. mercy