'rarely-demanded' originates from the combination of 'rarely,' which comes from Old English 'hrēor,' meaning 'seldom,' and 'demanded,' from Old French 'demander,' meaning 'to ask or request.'

'rarely' changed from the Old English word 'hrēor' and 'demanded' from the Old French 'demander,' eventually forming the modern English compound adjective 'rarely-demanded.'

Initially, 'rarely' meant 'seldom' and 'demanded' meant 'asked for,' and together they have retained the meaning of 'not often requested.'