'finely-adjusted' originates from the combination of 'fine' and 'adjust,' where 'fine' meant 'of high quality' and 'adjust' meant 'to alter or move slightly to achieve the desired fit, appearance, or result.'

'finely-adjusted' evolved from the Middle English word 'fine' and the Old French word 'ajuster,' eventually becoming the modern English term 'finely-adjusted.'

Initially, it meant 'carefully modified,' and this meaning has largely remained the same in modern usage.