'suddenly-finished' is a compound word formed from 'suddenly' and 'finished'. 'Suddenly' originates from Middle English 'sodein', from Old French 'soudain', from Latin 'subitaneus', meaning 'unexpected'. 'Finished' comes from Middle English 'finisshen', from Old French 'finir', from Latin 'finire', meaning 'to end'.

'Suddenly' evolved from the Latin 'subitaneus' through Old French 'soudain', while 'finished' evolved from Latin 'finire' through Old French 'finir'. The combination of these words into 'suddenly-finished' is a modern English construct.

Initially, 'suddenly' meant 'unexpectedly', and 'finished' meant 'to end'. The compound 'suddenly-finished' retains these meanings, indicating an abrupt completion.