'stably-constructed' originates from the combination of 'stable' and 'construct,' where 'stable' comes from Latin 'stabilis,' meaning 'firm' or 'steadfast,' and 'construct' from Latin 'constructus,' meaning 'to build or arrange.'

'stabilis' transformed into the Old French word 'stable,' and 'constructus' became 'construire' in Old French, eventually forming the modern English term 'stably-constructed.'

Initially, 'stable' meant 'firm or steadfast,' and 'construct' meant 'to build,' which has largely remained the same in modern usage.