'professionally-constructed' originates from the combination of 'professionally' and 'constructed', where 'professionally' is derived from 'profession', meaning 'a paid occupation', and 'constructed' from 'construct', meaning 'to build or form'.

'professionally' evolved from the Latin word 'professio', and 'constructed' from the Latin 'constructus'.

Initially, 'professionally' meant 'pertaining to a profession', and 'constructed' meant 'built'. Over time, the combination has come to imply a high standard of quality in construction.