Holman Bible Dictionary
(gehssh' uhm) Personal name with variant spellings perhaps meaning, “rain.” Son of Jahdai (1 Chronicles 2:47 ). Earliest translations give varying spellings, followed by modern translators. Thus NAS, NIV, NRSV, REB read, Geshan, which is the actual Hebrew spelling. The early Greek traditions read Gershom and Sogar. Many of the names in the list are towns associated with Caleb, so that Gesham (Geshan) may also be a town.