|Easton's Bible Dictionary|
Vineyard of noble vines, a place in Idumea, the native place of Samlah, one of the Edomitish kings (Genesis 36:36; 1 Chronicles 1:47).
Int. Standard Bible Encyclopedia
mas'-re-ka, mas-re'-ka (masreqah; Masekka): A place mentioned in the list of ancient rulers of Edom (Genesis 36:31), "before there reigned any king over the children of Israel." Masrekah was the royal city of Samlah, son of Hadad (Genesis 36:36 1 Chronicles 1:47). The name may mean "place of choice vines," but there is nothing to show in what locality it must be sought.
Masrekah (2 Occurrences)
Genesis 36:36 Hadad died, and Samlah of Masrekah reigned in his place. (WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)
1 Chronicles 1:47 Hadad died, and Samlah of Masrekah reigned in his place. (WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)