'reluctantly-built' originates from the English word 'reluctant,' which comes from the Latin word 'reluctari,' meaning 'to struggle against,' and 'built,' from the Old English 'byldan,' meaning 'to construct.'

'reluctant' changed from the Latin 'reluctari' to the English 'reluctant,' and 'built' evolved from the Old English 'byldan' to the modern English 'built.'

Initially, 'reluctant' meant 'to struggle against,' but over time it evolved into its current meaning of 'unwillingness.' 'Built' has largely retained its original meaning of 'to construct.'