TgO Num3:32 :וְאַמַרכְלָא דִממַנַא עַל רַברְבֵי לֵיוָאֵי‏ : The administrator appointed over the headmen of the Levites [=? MT: וּנְשִׂיא נְשִׂיאֵי הַלֵּוִי]
See the entire entry for ˀămarkol, ˀămarkəlā n.m. administrator (of finances?)