I have decided to begin a thread for students of ancient liturgy to reference, and I believe the new converts to EO, OO or the Western rites will also find this useful. I humbly ask arimethea to make this thread "sticky" and all members who are well versed in "liturgical jargon" to contribute. Explain the meaning of the word in your own words as best as you can. Eg: you can state what language the word derives from (Greek, Latin, Coptic, Armenian, Geez, Syriac, etc.), and how to pronounce it in addition to what it means, the more informative the description the better.
So who wants to go first?