'relaxation-induced' originates from the combination of 'relaxation' and 'induced', where 'relaxation' comes from Latin 'relaxare', meaning 'to loosen', and 'induced' from Latin 'inducere', meaning 'to lead into'.

'relaxation' changed from the Latin word 'relaxare' and 'induced' from 'inducere', eventually forming the modern English term 'relaxation-induced'.

Initially, 'relaxation' meant 'to loosen or reduce tension', and 'induced' meant 'to lead into'. Together, they evolved to mean 'caused by relaxation'.