distemper

Many people know "distemper" as a contagious disease in animals, especially dogs. But in English the word can be used more widely. It often describes a state of mental or emotional disturbance—a "distempered" mood where someone feels irritable, anxious, or deeply unsettled.

In a social context, you might say a nation is gripped by distemper if it is experiencing widespread political turmoil or civil unrest. This usage comes from the old idea of "bodily humors"; Shakespeare and other writers used the word to describe an unhealthy mix inside the body, which could lead to illness and odd behavior. In the world of art and decor, "distemper" also refers to a traditional type of water-based paint made with pigments and a glue-like binder.

The word "distemper" has a fascinating history rooted in the idea of imbalances within the body, the mind, and society. Its etymology traces back to the Latin distemperare, meaning "to mix improperly." Originally, this referred to a disruption of the four humors—blood, phlegm, black bile, and yellow bile—which were once thought to govern human health and temperament.

In the animal kingdom, distemper remains a serious infectious disease. In modern speech it most often points to canine distemper (a viral disease), and in veterinary contexts you may also hear it used for cats. In older writing, though, "distemper" could be a looser label for an animal illness, including in horses. Over time, the word also broadened to describe a general physical ailment or a state of being "out of sorts." More significantly, it evolved to represent mental and emotional unrest. A person suffering from distemper isn't necessarily physically sick; they are agitated, melancholic, or troubled in spirit.

This concept extends to the "body politic." During times of war or revolution, historians might describe the "distempered state of the kingdom," implying a sense of moral decay and social upheaval. Beyond these abstract meanings, the word also has a very practical application: distemper is a historic method of painting using powdered pigments mixed with water and a size (such as glue or gelatin). For centuries, it was the standard for interior walls and theatrical scenery.

As a verb, "to distemper" can mean to throw something out of balance, to make someone ill, or to weaken or tone down something that is too strong (for example, to distemper a harsh judgment). In art, it can also mean to paint with distemper or to mix color in that medium.

The common thread across all these definitions is the disruption of harmony. Whether it is a virus attacking an animal, an imbalance of humors in a person, a spirit clouded by anxiety, or a nation torn apart by strife, "distemper" evokes a state of being fundamentally out of balance.