'carelessly-restored' originates from the combination of 'carelessly' and 'restored', where 'carelessly' is derived from 'careless', meaning 'without care', and 'restored' from 'restore', meaning 'to bring back to a former condition'.

'carelessly' evolved from Middle English 'carles', and 'restored' from Old French 'restorer', eventually forming the modern English term 'carelessly-restored'.

Initially, 'carelessly' meant 'without care', and 'restored' meant 'brought back to a former state'. The combined term 'carelessly-restored' retains these meanings, indicating a restoration done without care.