Easton's Bible Dictionary (1897)
Olive planter, a Levite (1 Chr. 23:8).
Smith's Bible Dictionary (1863)
(olive), the son of Laadan, a Gershonite Levite.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ZE'THAM (olive tree), a Levite. 1 Chr 23:8; 1 Chr 26:22.