Short video (11:52): Aztec and Mayan are totally different languages. Sort of.
= new reply since forum marked as read
I found an answer in this article:
Cortes Constructs Brigantines as Crucial Weapon
From Cortés, Third Letter, 255–57
[When Cortés first saw Tenochtitlan, he recognized he could easily been trapped in the city if the Mexicas destroyed the bridges or causeways connecting it to the mainland. He soon built three brigantines, which the Mexicas destroyed before he could use them, necessitating the construction of the portable bridge he built after the Mexicas trapped the Spaniards in their quarters. When he got to Tlaxcala, he decided to build portable brigantines that could be carried overland in pieces and put together near Tenochtitlan. While he sent advanced parties to the Mexica capital, he left a captain in Tepeaca to assemble the brigantines carried overland by the Tlaxcalans. In April 1521, the captain received a letter from one of two Spaniards living with indigenous people supportive of the Spanish side.]
More:
https://www.historians.org/teaching-and-learning/teaching-resources-for-historians/teaching-and-learning-in-the-digital-age/the-history-of-the-americas/the-conquest-of-mexico/letters-from-hernan-cortes/cortes-constructs-brigantines-as-cr ucial-weapon
pendejo Cortés