Regem
REGEM (rē'gĕm, Heb. reghem). A descendant of the house or clan of Caleb, son of Jadhai (1Chr.2.47).
REGEM re’ gəm (רֶ֧גֶם, friend). The eponym of a Calebite family; one of the sons of Jahdai (1 Chron 2:47).
International Standard Bible Encyclopedia (1915)
(reghem, "friend" (?)): A Calebite, the son of Jahdai (1Ch 2:47), mentioned as the eponym of a Calebite family or clan.