'painstakingly' originates from 'painstaking,' which comes from 'pain' and 'stake,' where 'pain' meant 'effort' and 'stake' meant 'to take.' 'Restored' originates from Latin, specifically the word 'restaurare,' where 're-' meant 'again' and 'staurare' meant 'to build.'

'Painstakingly' evolved from the Middle English 'paynstaking,' and 'restored' evolved from the Old French 'restorer,' eventually becoming the modern English 'restored.'

Initially, 'painstakingly' meant 'taking pains or effort,' and 'restored' meant 'to bring back to a former condition.' These meanings have largely remained the same in modern usage.