'imperfectly-done' originates from the combination of 'imperfectly' and 'done', where 'imperfectly' is derived from Latin 'imperfectus', meaning 'unfinished', and 'done' from Old English 'don', meaning 'to perform'.

'imperfectly' evolved from the Latin 'imperfectus' through Old French 'imparfait', and 'done' from Old English 'don', eventually forming the modern English term 'imperfectly-done'.

Initially, 'imperfectly' meant 'unfinished or incomplete', and 'done' meant 'performed'. Together, they convey the idea of something not completed to a satisfactory standard.