'aphorizer' originates from Modern English, specifically the verb 'aphorize' plus the agentive suffix '-er', where 'aphorize' ultimately derives from Greek 'aphorizō' (or 'aphorizein'), in which the element 'apo-' meant 'away' and 'horizein' meant 'to bound, limit, or define'.

'aphorize' came into English via Late Latin/French adaptations of Greek 'aphorizō', and the agent noun 'aphorizer' was formed in English by adding the suffix '-er' to the verb 'aphorize'.

Initially it meant 'to define or delimit; to state a concise principle', but over time it evolved into the current sense 'to express ideas as aphorisms', and 'aphorizer' denotes someone who does this.