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Tornar-se amigo, ser amigo.
Diminuir, tornar menor. (become smaller, reduce)
It comes from the one word, "tornar," which means "to turn."
The word tornado is of Spanish origin; and is a combination of "Tronada" (thunderstorm) and "Tornar" (to turn)
It most likely comes from the Spanish word tronadameaning "thunderstorm" and the word tornar meaning "to turn."