Bereshis 50:9-11

Orthodox Jewish Bible

⁹ And there went up with him both merkavot and parashim; and it was a very great machaneh.

¹⁰ And they came to the goren (threshing floor) of Atad, which is beyond the Yarden, and there they mourned with a gadol and very bitter lamentation; and he made evel (mourning) for Aviv shivat yamim.

¹¹ And when the inhabitants of HaAretz, the Kena’ani, saw the evel (mourning) in the goren Atad, they said, This is a grievous evel to the Mitzrayim; therefore the shem of it was called Evel Mitzrayim. It is beyond the Yarden.