ירמיהו ט:ט פירוש: רש״י

for the mountains i.e., for the destruction of the mountains.

for the dwellings of the wilderness The dwelling of the shepherds in the wilderness. נאות is an expression of a dwelling. Comp. (Psalms 83: 13) “the dwellings (נאות) of God,” also (ibid. 93:5) “to Your house, the dwelling (נאוה) of sanctity.”

they are withered Heb. נצתו. An expression of aridness. Comp. (v. 11) “withered (נצתה) .”