The term 'slowly-finished' is a compound word formed by combining 'slowly' and 'finished'. 'Slowly' originates from the Old English 'slāwlice', meaning 'in a slow manner', and 'finished' comes from the Old French 'finir', meaning 'to end or complete'.

'Slowly' evolved from the Old English 'slāwlice', while 'finished' evolved from the Old French 'finir'. The combination of these words into 'slowly-finished' is a modern English construct.

Initially, 'slowly' meant 'in a slow manner', and 'finished' meant 'completed'. The combination retains these meanings, indicating a completion that occurs at a slow pace.