immunocompetent

the term is a modern scientific compound, formed in the mid-20th century from established english elements. the first element, 'immuno-', draws from the latin concept of exemption, which was adopted into medical vocabulary to describe the body's exemption from disease. the second element, 'competent', retains its latin meaning of being fit or adequate. when combined, they create a precise adjective describing the state of having an adequately functioning immune system, logically extending the idea of 'exemption' to a biological capability.

Structure: immuno (immune) + competent (capable) immuno from latin immunis (exempt from public service, free from a burden), used here in the modern biological sense of 'immune'. competent from latin competent- (being suitable or adequate), from the verb competere.