Yeah, the level titles were something seemingly taken from a thesaurus.
In Chainmail, it was Seer, Magician, Warlock, Sorcerer, Wizard
In OD&D, it was Medium, Seer, Conjurer, Theurgist, Thaumaturgist, Magician, Enchanter, Warlock, Sorcerer, Necromancer, Wizard
In AD&D 1e it was...