It’s the name of a video game released in 2015 although I found a website (apotheon.org) when searching Wayback machine (the game’s actual website is apotheongame.com).
I imagine that’s where the Apothecary would work.
Apothecary is a pretty outdated term.
Not sure if the word itself is some conjugation that makes it a real word, but it’s probably connected to or inspired by or meant to invoke the Ancient Greek apotheos (literally apo=from, theos=god) found in its most common derivation today into apotheosis. Hope that helps.
The title of this post made me think that you were a immortal confused by the evolution of language.
https://www.yourdictionary.com/apotheon#K7byWihCcMgSUeOb.99
Yes, it seems to be a real word in Ancient Greek, although it didn’t seem to have any special significance beyond it’s definition.
Surprisingly I couldn’t find the term on Wiktionary (a dictionary I use) and Wikipedia only has an article about the game
I actually found the above link to the definition on a Steam forum about the game.