kiln

Kiln comes from Middle English kilne, from Old English cyln, cylen, cylin, meaning a large oven or kiln. That word was borrowed from Latin culīna, meaning "kitchen" or "kitchen stove."

The Latin word for a household kitchen narrowed over time into English into a term for a specialized furnace used for drying, hardening, or firing materials like brick and pottery.

Kiln shares its Latin root, culīna, with the English word culinary, tying a brick-firing furnace back to the kitchen stove.