'condensation-resistant' originates from Modern English by combining the noun 'condensation' and the adjective 'resistant'. 'Condensation' (from Latin-rooted 'condensatio') refers to the process of becoming dense or forming droplets, and 'resistant' (from Latin 'resistere') means 'able to withstand or oppose'.

'condensation' comes via Latin 'condensatio' (from 'condensare'/'condensare' meaning to make dense) into Middle/Late English as 'condensation'; 'resistant' derives from Latin 'resistere' through Old French/Anglo-Norman into English as 'resistant'. These two words have been combined in Modern English to form the compound adjective 'condensation-resistant'.

Individually the parts meant 'the process of condensing' and 'able to resist or oppose'; combined, they specifically denote 'able to resist the formation of condensation' in modern technical and descriptive usage.