Genesis 50:10-11

10When they came to the threshing floor of Atad, which is beyond the Jordan, athey lamented there with a very great and grievous lamentation, and he bmade a mourning for his father seven days. 11When the inhabitants of the land, the Canaanites, saw the mourning on the threshing floor of Atad, they said, “This is a grievous mourning by the Egyptians.” Therefore the place was named Abel-mizraim;
 Abel-mizraim means mourning (or meadow) of Egypt
it is beyond the Jordan.
Copyright information for ESV