'conditionally-permitted' is a compound of 'conditionally' and 'permitted'. 'Conditionally' derives from 'condition' (from Latin 'conditio') with the adverbial suffix '-ally', meaning 'in a manner related to conditions'. 'Permitted' comes from Latin 'permittere' via Old French and Middle English, where 'per-' meant 'through' or 'thoroughly' and 'mittere' meant 'to send/let go'.

'condition' originates from Latin 'conditio' meaning 'agreement' or 'terms'; it passed into Old French and Middle English as 'condition' and later formed the adverb 'conditionally'. 'Permit' comes from Latin 'permittere', passed into Old French as 'permettre' and Middle English as 'permitten'/'permit', yielding the past participle 'permitted'. The modern compound 'conditionally-permitted' arose by combining the adverbial form with the past participle to describe permission given with conditions.

Initially, components referred separately to 'terms/agreements' ('condition') and 'allowing/letting go' ('permit'); combined, they evolved to describe permission that depends on specified terms — 'allowed only under conditions'.