from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the twelfth month of the Islamic calendar and the season of the hajj; has one extra day in leap years
Sorry, no etymologies found.
The hajj takes place during Dhu'l-Hijja, the last month of the Muslim calendar year (which is based on lunar cycles, meaning the hajj dates change annually).
"When any one of you intending to sacrifice the animal enters in the month (of Dhu'l-Hijja) he should not get his hair or nails touched (cut)"