'conditionally-allowed' originates from the combination of 'conditional' and 'allow,' where 'conditional' comes from Latin 'conditio,' meaning 'agreement,' and 'allow' from Old French 'alouer,' meaning 'to approve.'

'conditionally-allowed' evolved from the combination of 'conditional' and 'allow,' which were used separately in Middle English and eventually combined in modern English.

Initially, it meant 'permitted with conditions,' and this meaning has largely remained the same in modern usage.