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Definition of Lupin

In botany, it is a masculine noun that designates a plant and its fruit, which are also known by different names such as lupin, chocho, entremozo, among others. This plant is a legume that is from the peanut family, or peanut, which is used for human and animal consumption.

As feminine it refers to the lupine grape. This plant is generally known in Spain and grows near streams, its tubers are highly poisonous and has analgesic and sedative uses.


It designates that it belongs to or is related to the wolf, that is to say, that it is expressed to make synonymy to the carnivorous and voracious nature of a wolf, for example: The lupine wolf is on the prowl.


Common name given to all the grains of the bitter varieties that are known in the country.


Lupin is a word of English origin that can be translated as “lupino” or “lupina” in Spanish. Etimológicamente lupin is from Latin lupins consisting of lupus meaning “wolf” and termination unus pointing membership or relation. From this perspective, its use in the three languages, Latin, Spanish and English, is the same, at least in one meaning.

The use of the word lupin, or lupino, is not widespread in Spanish-speaking countries for its original reference. However, in other meanings it is known and used in different parts of the world.


The word lupin is used to designate a fictional character belonging to the writings of French Maurice Leblanc. This character, who is a thief, is highly known, especially in France, and has been used in many contexts since its origin.

In January 2021, the streaming network Netflix premiered a series entitled Lupine, which is based on Leblanc’s writings. The series is also of French origin and its main character is an impersonator of Arsen Lupin, which is why that name is attributed to him.