From zakak; pure; Zakkai, an Israelite -- Zaccai.
see HEBREW zakak
H2140. Zakkay
זַכַּי proper name, masculine head of family of returned exiles, זַכָּ֔י Ezra 2:9 (ᵐ5 Ζακχου, ᵐ5L Ζακχαιου) = Nehemiah 7:14 (ᵐ5 Ζαθου, A Ζακχουρ, ᵐ5L Ζακχαιου); perhaps = זַכַּי 3:20 Qr (Kt זַבַּי q. v.; ᵐ5 Ζαβ(ρ)ου, ᵐ5L Ραββαι). **Nestle (privately) suggests that this might be abbreviated from זכריה.