'candidly' originates from Latin, specifically the word 'candidus,' meaning 'white, pure,' and 'state' from Latin 'stare,' meaning 'to stand.'

'candidus' transformed into the French word 'candide,' and eventually became the modern English word 'candid.' 'Stare' evolved into 'state' through Old French 'stat.'

Initially, 'candid' meant 'white or pure,' but over time it evolved into its current meaning of 'honest and straightforward.'