noun
tallow
TAL-oh/ˈtæləʊ/
Rendered animal fat used to make candles and soap or for cooking.
The creamy tallow rests in a bowl beside candles made from it.

Etymology
Tallow has Germanic relatives naming the same animal fat, but its immediate source is unknown. Its deeper meaning may have been “firm, compact material,” a possible connection with the fat's hard consistency.
In context
Tallow candles were made of rendered animal fat, and they were what most of the household used for most things.
More examples
- The potatoes turn crisp as they fry in beef tallow.
- This soap contains tallow, coconut oil, and lavender.
- The warm tallow becomes firm as it cools.
Forms
tallow