'diced' originates from Old French, specifically the word 'de', where 'de' meant 'die' (as in a small cube for gaming).

'de' transformed into the English word 'dice', and the verb form 'to dice' led to the past participle and adjective 'diced'.

Initially, it referred to something related to dice (the gaming object), but over time it evolved into its current meaning of 'cut into small cubes'.