breathable

The word "breathable" is a modern English formation that transparently combines the native English noun "breath" with the productive adjectival suffix "-able". The root "breath" itself has deep Germanic origins, stemming from the Old English 'brǣþ', which referred broadly to exhalation, vapor, or smell, and is related to the verb "to breathe". The suffix "-able", of Latin origin via French, is used to create adjectives indicating a passive capacity or suitability. Therefore, the literal construction "capable of being breathed" logically evolved to describe materials, especially fabrics, that permit the passage of air and moisture, or atmospheres that are not stifling, thus making the act of breathing comfortable.

Structure: breath + able - breath: From Old English 'brǣþ', meaning "odor, scent, exhalation, vapor". In this word, it functions as the nominal root denoting the act or air of breathing. - able: From Latin '-abilis', via Old French '-able', a suffix forming adjectives meaning "capable of, fit for, or worthy of being acted upon".