'haphazardly-gathered' originates from the combination of 'haphazardly' and 'gathered'. 'Haphazardly' comes from 'haphazard', which originates from the Middle English word 'hap', meaning 'chance', and 'hazard', meaning 'risk'. 'Gathered' is the past participle of 'gather', which comes from the Old English 'gadrian', meaning 'to bring together'.

'Haphazardly-gathered' evolved from the combination of 'haphazardly' and 'gathered', reflecting a modern English expression for disorganized collection.

Initially, 'haphazardly' meant 'by chance' and 'gathered' meant 'brought together'. Over time, the combination evolved to describe a disorganized or random collection.