From 'hap' (luck, Old Norse) + 'hazard' (dice game, Arabic) — literally 'luck-dice,' two words for randomness fused together.
A compound of 'hap' (luck, fortune) + 'hazard' (chance, risk). 'Hap' comes from Old Norse 'happ' (luck, chance), from Proto-Germanic *hampą, possibly from PIE *kob- ('to suit, to fit'). 'Hazard' comes from Old French 'hasard' (dice game), from Arabic 'az-zahr' (the die) or possibly from Turkish 'zar' (die), entering European languages through the Crusades or Moorish Spain. The compound first appeared in the 16th century, initially as the noun