4 occurrences in 4 dictionaries
Reference: Lahmi
Hastings
The brother of Goliath the Gittite, slain by Elhanan the son of Jair (1Ch 20:5). There is a discrepancy between this passage and the parallel passage in 2Sa 21:19, where we read that 'Elhanan [wh. see] the Bethlehemite slew Goliath the Gittite.' If the text of Chronicles is the more correct, the designation Bethlehemite of Samuel is simply a corruption of the name Lahmi, but the converse might also be the case.
T. A. Moxon.
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Smith
Lah'mi
(warrior), the brother of Goliath the Gittite, slain by Elhanan the son of Zair or Zaor.
(B.C. 1020.)