'inharmoniously' originates from the prefix 'in-' meaning 'not' and the word 'harmonious,' which comes from the Greek word 'harmonia,' meaning 'agreement or concord.'

'harmonia' transformed into the Latin word 'harmonia,' and eventually became the modern English word 'harmonious' through Old French 'harmonie.'

Initially, it meant 'agreement or concord,' but over time it evolved into its current meaning of 'lacking harmony.'