'partibly' originates from Latin, specifically the word 'partibilis,' where 'parti-' meant 'part' and '-bilis' meant 'able to be.'

'partibilis' transformed into the Old French word 'partible,' and eventually became the modern English word 'partible,' with 'partibly' as its adverbial form.

Initially, it meant 'able to be divided,' and this meaning has largely remained the same in modern usage.