pollutant

The word 'pollutant' is a modern scientific and legal term constructed from classical elements. Its core, 'pollut-', derives from the Latin verb polluere, meaning to soil, defile, or contaminate, which itself may be related to por- (forth) and luere (to wash), suggesting a sense of making impure. The agent suffix '-ant', of Latin origin, is attached to this verb stem to create a noun that specifically denotes "a thing that contaminates." Thus, the literal construction "a thing that defiles" perfectly captures the modern abstract meaning of a substance that introduces harmful impurities into the environment.

Structure: pollut (to make dirty) + ant (agent suffix) pollut: From Latin polluere (to soil, defile, contaminate). This is the verb stem functioning as the core semantic base. ant: A suffix of Latin origin (-antem, -entem), forming agent nouns from verbs, indicating "a person or thing that performs the action."