Apparently a variation for Zeythan; Zetham, an &? Israelite -- Zetham.
see HEBREW Zeythan
H2241. Zetham
זֵתָם proper name, masculine (sub זית in Thes, = foregoing) — a Levite (Gershonite) 1 Chronicles 23:8, apparently son of לַעְדָּן and brother of יְחִיאֵל and יוֺאֵל; 26:22 apparently grandson of לַעְדָּן, and son of יְחִיאֵלִי (expressly called brother of יוֺאֵל); ᵐ5 Ζεθομ, Ζοθομ, ᵐ5L Ζηθαν.
זַךְ זָךְ,, see below זכך. below
זֵתָם proper name, masculine a Levite 1 Chronicles 23:8; 26:28.