'extensively-produced' originates from the combination of 'extensive' and 'produce', where 'extensive' means 'covering a large area' and 'produce' means 'to create or manufacture'.

'Extensive' comes from the Latin word 'extensus', meaning 'stretched out', and 'produce' comes from the Latin 'producere', meaning 'to bring forth'.

Initially, 'extensive' meant 'stretched out', but over time it evolved to mean 'covering a large area'. 'Produce' has largely retained its original meaning of 'to create or manufacture'.