The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix II
Semitic Roots
ENTRY:
zyn
DEFINITION:
(or yn). Root of uncertain meaning. a.cedilla, izzard, zed, zeta, from Greek zta, alteration (influenced by the following letter ta, eta) of Phoenician *zn, seventh letter of the Phoenician alphabet; b.zayin, from Hebrew zayin, from alteration of Phoenician *zn (see above).