I can honestly say I have never seen any of the words you mentioned and despite not having the slightest clue of their meaning, I now want to find ways to work them into normal conversation!
Abstemious - not self-indulgent. Prone to eating or drinking a modest amount.
Benighted - in a state of pitiful or contemptible intellectual or moral ignorance, typically owing to a lack of opportunity; overtaken by darkness.
Equerry - Personal assistant or attendant to a member of the royal family. lol, not that useful.
Psychopomp - Spiritual guide of a person's soul or a guide of souls to the place of the dead.
Anyway, since there's no game until Friday, I'm blowing my cover as a word nerd.