'modernly-constructed' originates from 'modern' and 'construct,' where 'modern' meant 'of the present or recent times' and 'construct' meant 'to build or form by putting together parts.'

'modern' changed from the Latin word 'modernus,' and 'construct' from the Latin 'constructus,' eventually becoming the modern English word 'modernly-constructed.'

Initially, 'modern' meant 'pertaining to the present,' and 'construct' meant 'to build,' and these meanings have largely remained the same in modern usage.