'randomly-furnished' originates from the combination of 'randomly' and 'furnished'. 'Randomly' comes from 'random', which has roots in Old French 'randir', meaning 'to run'. 'Furnished' comes from the Old French 'furnir', meaning 'to provide'.

'randomly-furnished' combines the adverb 'randomly' with the past participle 'furnished', forming a modern English adjective.

Initially, 'furnished' meant 'to provide furniture', but in combination with 'randomly', it evolved to describe a lack of order in furnishing.