ζῶον G2226:

neuter of G2198

zoon; beast (KJV); animal life

Illustrations of English words
derived from the Greek in the New Testament.

Gaylon West.

Strong's: G2226 ζωον (zoon) means "living being" or "animal" (Strong's). - ζῶον^G2226 zo¯on;

Total KJV Occurrences: 23 times.

(1) "beasts", 16 times:

Hebrews 13:11, 2 Peter 2:12, Jude 1:10, Revelation 4:6, Revelation 4:8-9, Revelation 5:6, Revelation 5:8, Revelation 5:11, Revelation 5:14, Revelation 6:1, Revelation 6:6, Revelation 7:11, Revelation 14:3, Revelation 15:7, Revelation 19:4

(2) beast, 7:

Revelation 4:7, Revelation 6:3, Revelation 6:5, Revelation 6:7.

Etymonline.com:

zoo- word-forming element meaning "animal, living being," from Greek zoion "an animal," literally "a living being." zoo (n.)c. 1847, short for Zoological Gardens of the London Zoological Society, established 1828

zoophagous (adj.) zoophage.

zooplankton (n.)

zoophobia (n.)

zoography (n.)

zoolatry (n.)

zoophilia (n.)

zoonosis (n.)

zoomorphic (adj.)

zoologist (n.)

zooxanthella (n.) plural zooxanthellae,

zoology (n.)"science of animals,"

zoot suit (n.)1942, American English slang

zoonotic (adj.)

zoon (n.)

zoological (adj.)1807

NOTICE: Compare ζῶον^G2226 (ANIMAL) with the Greek word G2222 ζωἡ which means "life" relative to eternity.
source:http://www.quora.com/What-is-the-etymology-of-Zoo

G2222 ζωἡ "life" is used 88 times in the New Testament and usually refers to heavenly life.

G2222 contrasts with physical life bios G979* (and bioo [bee-oh'-o] v. G980 1. to spend bodily existence):

G982 bio¯tikos is a derivative of G980 and is used in 1 Corinthians 6:3.

*G979- Strong's Dictionary: A primary word; life, that is, (literally) the present state of existence; by implication the means of livelihood: - good, life, living.

Note: I have heard teachers talk of 1 Corinthians 6:3 as referring to heavenly things. But the word for life in this 1 Corinthians 6 passage is the word for earthly existence (G982 bio¯tikos). -- The church is responsible for disciplining members (context continues from 1 Corinthians chapter 5). G982 bio¯tikos is the same word used in Luke 21:34, "And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life".