Ammonia

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From The American Heritage® Dictionary of the English Language, 4th Edition:

"New Latin, from Latin (sāl) ammōniacus, (salt) of Amen, from Greek Ammōniakos, from Ammōn, Amen (from its having been obtained from a region near the temple of Amen, in Libya)."

From Wiktionary, Creative Commons Attribution/Share-Alike License:

"From sal ammoniac, which was first obtained near the temple of Jupiter in Ammon, by burning camel's dung. See ammoniac."