'pro-reproductive' originates from the prefix 'pro-' meaning 'in favor of' and the word 'reproductive' which comes from Latin 'reproducere', where 're-' meant 'again' and 'producere' meant 'to bring forth'.

'reproducere' transformed into the English word 'reproduce', and eventually became part of the compound word 'pro-reproductive'.

Initially, it meant 'in favor of bringing forth again', but over time it evolved into its current meaning of 'supporting reproduction'.