'actless' originates from the English word 'act' combined with the suffix '-less', where 'act' meant 'to do or perform' and '-less' meant 'without'.

'act' transformed from the Latin word 'actus', and eventually became the modern English word 'act'.

Initially, 'act' meant 'to do or perform', and with the addition of '-less', it evolved to mean 'without action'.