rehum

from Easton's 1897 Bible Dictionary
Rehum
merciful. (1.) One of "the children of the province" who
returned from the Captivity (Ezra 2:2); the same as "Nehum"
(Neh. 7:7).

  (2.) The "chancellor" of Artaxerxes, who sought to stir him up
against the Jews (Ezra 4:8-24) and prevent the rebuilding of the
walls and the temple of Jerusalem.

  (3.) A Levite (Neh. 3:17).

  (4.) Neh. 10:25.

  (5.) A priest (Neh. 12:3).
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Rehum, merciful; compassionate
    

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