English

procarcinogen

From pro- + carcinogen.

Proto-Indo-European *pér ‘through’

Proto-Indo-European *pró ‘forwards, before’

Proto-Italic *prō ‘in front of, before’

Latin prō ‘in favor of, on behalf of’

English pro-

Today it means

noun Any substance that is transformed into a carcinogen by metabolism.

Language periods are conventional ranges, not dates for this word.

Etymograph / procarcinogen