דברי הימים ב לא:ו פירוש: רש״י

and the tithes of sacred things consecrated to the Lord the tithe of the tithe, which the Levites give the priests (Num. 18:25f.).

and they gave many stacks עֲרֵמוֹת עֲרֵמוֹת (houffen, Middle High German, heaps), an example is (Song 7:3): “a stack of (עֲרֵמַת) wheat.”