The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix II
Semitic Roots
ENTRY:
yy.
DEFINITION:
Common Semitic interrogative stem *ayy-, which?, where?. 1. Job, from Hebrew iyyôb, perhaps from an early Northwest Semitic dialectal name meaning “where is the father?”, from iyy, where?, akin to Hebrew ê, where? (ôb, father; see b. Alternately, iyyôb may be akin to Hebrew yb, enemy; see yb.) 2.Jezebel, from Hebrew îzebel, where is the prince?, from î, akin to ê, ayy, where? (zebel, prince; see zbl).
yy.
y
b, enemy; see 
