Catarrh was historically used to describe inflammation of the mucous membranes of the nose and throat accompanied by heavy mucus discharge. The condition was associated with colds, damp weather, and respiratory weakness, and it was commonly mentioned in eighteenth- and nineteenth-century medical language. In poetry the word sometimes appears in humorous, satirical, or realistic contexts to portray bodily frailty. It could also evoke winter, chill air, or the vulnerability of the human body to the environment, reinforcing themes of physical limitation and everyday illness.

Catarrh refers to inflammation of the mucous membranes of the nose and throat producing excessive mucus. In historical poetry the term frequently appears in descriptions of winter illness or damp climates. Beyond its medical meaning, poets may use catarrh to evoke frailty, ageing, or the discomforts of everyday bodily life. Because the word sounds slightly unpleasant, it can introduce realism or humour into otherwise elevated verse. It often accompanies imagery of coughs, colds, and bleak seasonal conditions.