'answerably' originates from English, specifically the word 'answerable', where 'answer' derives from Old English 'andswaru'/'andswarian' meaning 'a response' or 'to answer', and the suffix '-able' (via Old French/Latin) meant 'capable of'.

'answerable' developed in Middle English from Old English elements related to 'answer'; the adverb 'answerably' was later formed by adding the adverbial suffix '-ly' to the adjective 'answerable'.

Initially it carried the sense 'able to be answered' and 'liable to be called to account'; over time the adjective and its adverbial form also came to emphasize being 'responsible' or 'accountable' in conduct.