'expertly-constructed' originates from the combination of 'expertly' and 'constructed'. 'Expertly' comes from 'expert', which originates from Latin 'expertus', meaning 'tried, tested'. 'Constructed' comes from Latin 'constructus', meaning 'to heap up, build'.

'Expertly' evolved from the Latin 'expertus' through Old French 'expert', and 'constructed' evolved from Latin 'constructus' through Middle English 'constructen'.

Initially, 'expertly' meant 'tried or tested', and 'constructed' meant 'to build'. Over time, 'expertly-constructed' evolved to mean 'skillfully built'.