The word 'tyre' (or 'tire' in American English) has a fascinating and somewhat obscure etymology. It is believed to be a shortening of the word 'attire', which in Middle English meant 'dress' or 'covering'. This semantic link is logical, as a tyre is the outer covering for a wheel. The spelling 'tyre' became standard in British English, possibly to differentiate it from the verb 'to tire' (meaning to become weary), while American English retained the simpler 'tire'. The term evolved from a general reference to the iron band fitted around a wooden wheel to its modern meaning of a pneumatic rubber covering in the late 19th century with the invention of the automobile.

The word 'tyre' is a simplex word of uncertain origin, likely a shortened form of 'attire', used in its archaic sense of 'covering' or 'dress'. Its functional role is as a complete lexical unit.