'carefully-planned' originates from the combination of 'carefully' and 'planned', where 'carefully' is derived from 'care' meaning 'attention' and 'planned' from 'plan' meaning 'a detailed proposal'.

'carefully' evolved from the Old English word 'caru' meaning 'sorrow, anxiety' and 'planned' from the French word 'plan' meaning 'a drawing or diagram'.

Initially, 'carefully' meant 'with care or concern', and 'planned' meant 'drawn or designed'. Over time, they combined to mean 'executed with meticulous attention'.