'skillfully-designed' originates from the combination of 'skillful' and 'design,' where 'skillful' comes from the Old English 'sceolful,' meaning 'full of skill,' and 'design' from the Latin 'designare,' meaning 'to mark out.'

'skillful' changed from the Old English word 'sceolful' and eventually became the modern English word 'skillful.' 'Design' evolved from the Latin 'designare' through Old French 'designer' to the modern English 'design.'

Initially, 'skillful' meant 'full of skill,' and 'design' meant 'to mark out.' Over time, 'skillfully-designed' evolved to mean 'created with a high level of skill and attention to detail.'