The meaning of “אֲשֵׁדָה”

“And all the plain on this side Jordan eastward, even unto the sea of the plain, under the springs of Pisgah. ”

“So Joshua smote all the country of the hills, and of the south, and of the vale, and of the springs, and all their kings: he left none remaining, but utterly destroyed all that breathed, as the Lord God of Israel commanded.”

“In the mountains, and in the valleys, and in the plains, and in the springs, and in the wilderness, and in the south country; the Hittites, the Amorites, and the Canaanites, the Perizzites, the Hivites, and the Jebusites:”