Every English speaker knows the Spanish word for the big Mexican hats, sombrero. This word makes it easy to remember the word from whence it came: sombra, the Spanish word meaning… shade. The s-mb-r root is clear in both words!
For those of us, including me, who love less common words, another cousin word is the English penumbra, for something that’s partially covered by a shadow. The umbra is from the Latin for “shadow”, from which we also got sombra in Spanish, with the sub– prefix.