Pet

Pet (noun) — a domesticated animal kept for companionship and pleasure rather than for work or food.

I had always assumed the word pet came from the action. We pet our pets. Seemed perfectly reasonable.

As it turns out, I was wrong.

The verb came later. The pets came first.

Somewhere in 16th-century Scotland, people began calling their hand-raised lambs pets—creatures kept not for utility, but for affection. Over time, the term expanded. By the late 1500s, any animal kept for companionship could be a pet. Even cherished children occasionally earned the title.

The word itself likely traces back to the Scottish Gaelic peata, meaning a tame animal or beloved person. There’s a competing theory that links it to petty (“small”), but most roads lead back to affection rather than size.

By the early 1600s, English did what English does best—it turned a noun into a verb. To pet became the act of showing physical affection. Presumably because “to stroke tenderly” didn’t quite have the same conversational efficiency.

Language evolves. Logic shrugs and follows along.

In the end, we still pet our pets.