3 occurrences in 3 dictionaries
Reference: Hezrai
Fausets
HEZRAI in the Qeri or Hebrew margin; HEZRO in the Hebrew text, the kethibh or Hebrew text (2Sa 23:35): "the Carmelite." Once perhaps an adherent of Nabal (1Ch 11:37).
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Smith
Hez'ra-i
(enclosed), one of the thirty heroes of David's guard.
(B.C. 1046.) In the parallel list,
the name appears as HEZRO.