'haphazardly-decided' originates from the combination of 'haphazard' and 'decide'. 'Haphazard' comes from Middle English 'hap' meaning 'chance' and 'hazard' meaning 'risk'. 'Decide' comes from Latin 'decidere', where 'de-' meant 'off' and 'caedere' meant 'to cut'.

'Haphazard' evolved from the Old French 'hasard', which referred to a game of dice, and 'decide' from Latin 'decidere'.

Initially, 'haphazard' meant 'chance or risk', and 'decide' meant 'to cut off'. Over time, 'haphazardly-decided' evolved to mean 'made without careful thought'.