'uncooked' originates from the prefix 'un-' meaning 'not' and the word 'cook' from Old English 'cōcian', which meant 'to prepare food by heating'.

'cōcian' transformed into the Middle English word 'coken', and eventually became the modern English word 'cook'.

Initially, 'cook' meant 'to prepare food by heating', and 'uncooked' has consistently meant 'not cooked'.