'resource-demanding' is a compound word formed from 'resource' and 'demanding'. 'Resource' originates from Old French 'resourse', meaning 'a source or supply', and 'demanding' comes from the Latin 'demandare', meaning 'to entrust'.

'Resource' evolved from the Old French 'resourse', while 'demanding' evolved from the Latin 'demandare'. The combination of these words into 'resource-demanding' reflects the modern need to describe tasks or projects that require significant resources.

Initially, 'resource' referred to a source of supply, and 'demanding' meant 'requiring attention'. Together, they evolved to describe tasks that require significant resources.