[Ἰδουμαία] of Hebrew origin (H123); Idumæa (i.e. Edom), a region East (and South) of Palestine
Usages throughout the bible
Mark 3:8
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And from Jerusalem, and from Idumaea, G2401 and from beyond Jordan; and they about Tyre and Sidon, a great multitude, when they had heard what great things he did, came unto him.