בֹּ֥זּוּ כֶ֖סֶף בֹּ֣זּוּ זָהָ֑ב וְאֵ֥ין קֵ֙צֶה֙ לַתְּכוּנָ֔ה כָּבֹ֕ד מִכֹּ֖ל כְּלִ֥י חֶמְדָּֽה׃
Take ye the spoil of silver, take the spoil of gold; For there is no end of the store, Rich with all precious vessels.
Rashi on Nahum
to the treasures Heb. לְתְּכוּנָה, to their treasures. [It is called תְּכוּנָה] because the silver and gold placed in the treasury is placed there with a count, as you say (II Kings 12:12): “The counted (הַמְתֻכּן) money.” [following Jonathan]