“ammonitess” in the Douay-Rheims Bible

The word ammonitess appears 4 times in the Douay-Rheims Bible. The first 4 matching verses are shown below.

3 Kings 14:21 And Roboam, the son of Solomon, reigned in Juda: Roboam was one and forty years old when he began to reign: and he reigned seventeen years in Jerusalem, the city which the Lord chose out of all the tribes of Israel to put his name there. And his mother’s name was Naama, an Ammonitess.
3 Kings 14:31 And Roboam slept with his fathers, and was buried with them, in the city of David: and his mother’s name was Naama, an Ammonitess: and Abiam, his son, reigned in his stead.
2 Paralipomenon 12:13 King Roboam therefore was strengthened in Jerusalem, and reigned: he was one and forty years old when he began to reign, and he reigned seventeen years in Jerusalem, the city which the Lord chose out of all the tribes of Israel, to establish his name there: and the name of his mother was Naama an Ammonitess.
2 Paralipomenon 24:26 Now the men that conspired against him were Zabad the son of Semmaath an Ammonitess, and Jozabad the son of Semarith a Moabitess.