'fully-answered' originates from the combination of 'fully,' meaning 'completely,' and 'answered,' the past participle of 'answer,' which comes from Old English 'andswaru,' meaning 'a response or reply.'

'andswaru' transformed into the Middle English word 'answere,' and eventually became the modern English word 'answer.'

Initially, 'answer' meant 'a response or reply,' and this meaning has largely remained the same in modern usage.