'quickly-assembled' originates from the combination of 'quickly' and 'assemble', where 'quickly' is derived from Old English 'cwic' meaning 'alive' and 'assemble' from Latin 'assemblare', meaning 'to bring together'.

'quickly' changed from Old English 'cwic' to Middle English 'quik', and 'assemble' from Latin 'assemblare' to Old French 'assembler', eventually becoming the modern English 'assemble'.

Initially, 'quickly' meant 'alive', but over time it evolved into its current meaning of 'in a short time'. 'Assemble' has largely retained its original meaning of 'to bring together'.