Castilla elastica (Nahuatl) word for rubber was "ulli / olli", from which their word for the ballgame derived), and also their name for the ancient people they associated with the origin of the ballgame, the Olmecs ("olmeca": "rubber people"). The Nahuatl word for the tree of "Castilla elastica" is olicuáhuitl; in Spanish it is known as palo de hule. Caucho, castilloa rubber. Castilla elastica Castilla elastica, the Panama rubber tree, is a tree native to the tropical areas of Mexico, Central America, and northern South America. It was the principal source of latex among the Mesoamerican peoples in pre-Columbian times. The latex
Origin of the Romanians preservation or lack of certain Latin terms reveal that Romanian developed north of Lower Danube. One of these terms is the Latin word for gold "(aurum)", preserved in Daco-Romanian, but lost in Aromanian and Istro-Romanian. For Nandriș, the word is important evidence for the Romanians' continuous presence in Transylvania, because Romanian mountainers owned many Transylvanian gold mines in Modern Times, and Nandriș thinks that newcomers would not have been allowed to open mines in the province. The Latin terms for fig tree "(ficus)" and chestnut "(castaneus)" were kept in Aromanian and Megleno-Romanian, but they disappeared from Daco-Romanian. Nandriș and Sala