The term 'hearing-based' is a compound word formed from 'hearing' and 'based'. 'Hearing' originates from Old English 'hēran', meaning 'to perceive by the ear'. 'Based' comes from the Middle English 'basen', meaning 'to establish'.

The word 'hearing' evolved from Old English 'hēran', while 'based' evolved from Middle English 'basen'. The combination of these words into 'hearing-based' is a modern English formation.

The term 'hearing-based' has consistently referred to something that relies on or is related to the sense of hearing.