'haphazardly-executed' originates from the combination of 'haphazardly' and 'executed'. 'Haphazardly' comes from 'hap' meaning 'chance' and 'hazard' meaning 'risk', while 'executed' comes from Latin 'executus', past participle of 'exsequi', meaning 'to follow out'.

'Haphazardly' evolved from Middle English 'hap' and 'hazard', while 'executed' evolved from Latin 'executus' through Old French 'executer'.

Initially, 'haphazardly' meant 'by chance', and 'executed' meant 'carried out'. Together, they evolved to mean 'carried out in a disorganized manner'.