'haphazardly-built' originates from the word 'haphazard,' which comes from the Old French word 'hasard,' meaning 'game of chance.' The suffix '-ly' is added to form an adverb, and 'built' is the past participle of 'build.'

'haphazard' evolved from the Old French 'hasard' and was combined with 'built' to describe something constructed without order.

Initially, 'haphazard' referred to a game of chance, but it evolved to describe actions done without planning or order.