'skillfully-made' originates from the combination of 'skillful' and 'made', where 'skillful' comes from 'skill' meaning 'ability' and '-ful' meaning 'full of', and 'made' is the past participle of 'make'.

'skillful' changed from the Old English word 'sciell' meaning 'knowledge' and eventually became the modern English word 'skillful'.

Initially, 'skillful' meant 'full of knowledge', but over time it evolved into its current meaning of 'having or showing skill'.