Masrekah

MASREKAH măs’ rə kə (מַּשְׂרֵקָֽה). The royal city of Samlah, a king of Edom (Gen 36:36; 1 Chron 1:47). The site is unknown.

International Standard Bible Encyclopedia (1915)

mas’-re-ka, mas-re’-ka (masreqah; Masekka): A place mentioned in the list of ancient rulers of Edom (Ge 36:31), "before there reigned any king over the children of Israel." Masrekah was the royal city of Samlah, son of Hadad (Ge 36:36; 1Ch 1:47). The name may mean "place of choice vines," but there is nothing to show in what locality it must be sought.