'efficiently-dealt' originates from the combination of 'efficiently' and 'dealt', where 'efficiently' means 'in a manner that achieves maximum productivity with minimum wasted effort' and 'dealt' is the past participle of 'deal', meaning 'to handle or manage'.

'efficiently-dealt' combines the adverb 'efficiently' with the past participle 'dealt' to form a compound adjective.

Initially, 'efficiently' meant 'in an efficient manner', and 'dealt' meant 'handled'. Together, they convey the idea of handling something in an efficient manner.