pallu

from Easton's 1897 Bible Dictionary
Pallu
separated, the second son of Reuben (1 Chr. 5:3); called Phallu,
Gen. 46:9. He was the father of the Phalluites (Ex. 6:14; Num.
26:5, 8).
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Pallu, marvelous; hidden
    

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