'rarely-dispatched' originates from the combination of 'rarely,' meaning 'not often,' and 'dispatched,' meaning 'sent out or delivered.'

The term 'rarely-dispatched' combines the adverb 'rarely' from Middle English 'rarelī' and the past participle 'dispatched' from Old French 'despechier.'

Initially, 'rarely-dispatched' meant 'not often sent out,' and this meaning has remained consistent in modern usage.