'later-formed' originates from the combination of 'later' and 'formed', where 'later' means 'after a certain time' and 'formed' means 'created or shaped'.

The term 'later-formed' combines the adjective 'later' with the past participle 'formed', used to describe something created at a subsequent time.

Initially, it meant 'created at a later time', and this meaning has largely remained the same in modern usage.