hajj or haj also hadj (hăj)
n. pl. hajj·esor haj·es also hadj·es
A pilgrimage to Mecca during Dhu'l Hijja, considered obligatory for all Muslims who are capable of undertaking it at least once in their lifetime.
[Arabic ḥajj, from ḥajja, to perform the annual Meccan pilgrimage; see ḥgg in the Appendix of Semitic roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.