Meanings of πέρας listed in wiktionary:
end, goal, extremity
All these fall within the scope of τέλος. I would like to understand the nuances of these three meanings (there is no problem with other uses of τέλος). Subquestions:
I understand that τέλος is "end" mostly chronologically and πέρας mostly spatially. How strong is this distinction? Is it like this (almost) always or just in some 70-80%? What are the nuances of using one in the other's domain?
What are the basic rules for figurative uses of "end"? My guess is that πέρας emphasises "limit" or "border" and is a mathematical term, while "τέλος" is used in most other contexts.
Τέλος is often used as a philosophical term for "purpose" or "goal" (see Aristotle's "final cause"). I don't remember ever seeing πέρας used as "goal". In which contexts is it possible, and what is the difference?