the origin of word invierno?

The word "invierno" is the Spanish word for "winter." It has a fascinating history, tracing back to Latin and ultimately to a Proto-Indo-European root:

* Latin: The word "invierno" comes directly from the Latin word "hibernus," meaning "of or belonging to winter."

* Proto-Indo-European: "Hibernus" itself derives from the Proto-Indo-European word "*h₂eymós" meaning "winter." This word is the ancestor of many words for winter in various languages.

Therefore, the journey of "invierno" is:

* Proto-Indo-European: "*h₂eymós" -> Latin: "hibernus" -> Spanish: "invierno"

It's interesting to see how words evolve through different languages, carrying their meaning across centuries and cultures.