“solids” in the Douay-Rheims Bible

The word solids appears 3 times in the Douay-Rheims Bible. The first 3 matching verses are shown below.

1 Paralipomenon 29:7 And they gave for the works of the house of the Lord, of gold, five thousand talents, and ten thousand solids: of silver ten thousand talents: and of brass eighteen thousand talents: and of iron a hundred thousand talents.
1 Esdras 2:69 According to their ability, they gave towards the expenses of the work, sixty-one thousand solids of gold, five thousand pounds of silver, and a hundred garments for the priests.
1 Esdras 8:27 And twenty cups of gold, of a thousand solids, and two vessels of the best shining brass, beautiful as gold.