וְיָקְטָ֣ן יָלַ֔ד אֶת־אַלְמוֹדָ֖ד וְאֶת־שָׁ֑לֶף וְאֶת־חֲצַרְמָ֖וֶת וְאֶת־יָֽרַח׃
욕단은 알모닷과 셀렙과 하살마웹과 예라와
Rashi on Genesis
חצרמות He was so called (Court of Death) after his city. So is the statement of the Agada (Genesis Rabbah 37:8).
Radak on Genesis
חצרמות, this is one word though it may sound as if it should be two words.
Siftei Chakhamim
He was so called because of his city. [The Aggadah explains that] the people of that city awaited death [מות] every day, because they [were very poor] and ate animal fodder.