re: eloquent... exotic... esoteric... (please provide definitions)
Exegesis - critical appraisal of a text or a portion of that text (particularly the Bible)
I used this in a science essay once, and got marked down for using "non-existent words". I would have liked to have been able to say I used the word out of a sheer love of language, but really I was an awkward, socially inept teenager who compensated for his frustrations by baiting his teachers (e.g. handing in a review of personal reading on the subject of Feersum Endjinn, written in the style of Bascule the Teller, to a trainee teacher who had dyslexia - I got pulled out of a class to "explain myself" over that one to the Head of English, who was trying desperately not to laugh in front of her colleagues).
Going back to the word, I love the rhythm of just saying it. Stressing the second vowel is just so very pleasant. Exegesis.