Meaning of Z in English
Z, the twenty-sixth and last letter of the English alphabet, is a vocal consonant. It is taken from the Latin letter Z, which came from the Greek alphabet, this having it from a Semitic source. The ultimate origin is probably Egyptian. Etymologically, it is most closely related to s, y, and j; as in glass, glaze; E. yoke, L. yugum; E. zealous, jealous.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012