The Spanish word 'marijuana' has its origins in the Nahuatl language, which was spoken by the Aztecs and is still used in parts of Mexico today. It comes from a combination of two Nahuatl words: 'malli' meaning 'twisting herb' and 'tlahuani' meaning 'intoxicated'. The word first entered Spanish as 'marihuana' and later evolved into the modern spelling 'marijuana'. The etymology reflects both the physical characteristics of the plant (its twisting nature) and its effects (causing intoxication).

This is one of many words that Spanish acquired from Nahuatl during the colonial period in Mexico, particularly for plants and concepts that were native to the Americas.

There aren't many common Spanish words directly related to 'marijuana' since it comes from Nahuatl rather than Latin or Greek roots that are more common in Spanish vocabulary. Both 'marihuana' and 'marijuana' are used in Spanish, with 'marihuana' being the more traditional spelling.

The English word 'marijuana' was borrowed directly from Spanish in the early 20th century. The alternate spelling 'marihuana' was also used in English, particularly in early legal documents and government publications. Both forms maintain the same meaning as the Spanish source word.