'unsliced' originates from English, specifically the prefix 'un-' and the word 'slice', where 'un-' meant 'not' and 'slice' meant 'to cut into thin pieces.'

'unsliced' was formed by adding the negative prefix 'un-' to the past participle 'sliced'. The verb 'slice' came into English via Middle English (e.g. 'slicen') from Old Norse (e.g. 'slisa') and eventually became modern English 'slice'.

Initially, it meant 'not cut into slices', and over time this basic meaning has remained largely unchanged.