It is always funny to me, seeing someone speaking about the Greek Language as a dead one.
Most of these terms are spoken in everyday life in Greece with the same meaning.
Old English are way harder to understand for an neo-English speaker than Homer writings, going back 3000 years, are for a neo-Greek speaker. Does this make English a dead language?
Also these terms exist in English in one way or the other, taking time to study a word gives it a lot more deeper meaning that it needs, especially when the word uses changes by time and place. Many of these Classics worshipers can be paralleled with the weird Japanese culture worshipers Weeabos.