'righteously-executed' originates from the combination of 'righteous' and 'execute', where 'righteous' meant 'morally right' and 'execute' meant 'to carry out'.

'righteous' changed from Old English 'rihtwīs' meaning 'just, upright' and 'execute' from Latin 'exsequi' meaning 'to follow out'.

Initially, 'righteous' meant 'just' and 'execute' meant 'to follow out', but over time it evolved into its current meaning of 'morally right execution'.