I think you mean Athabaskan.
There are three language families in this group, which in turn have more than 100 languages and dialects.
The main tribes of the Plateau region were Kutenai, Nez Perce, Salish and Cayuse, but there were many other smaller tribes. Their languages belong to the Sahaptin, Salishan, Athapaskan, Chinookan, Cayuse and Kootenai families.
The term "Athapaskan" refers to a large family of languages spoken from Alaska to New Mexico - so there can not be "the Athapaskan word" for anything.In Gwich'in the word meaning it is stormy or windy is ahtr'eii. In Ahtna it is łteni. In Navajo it is ne-ol.
An Athapaskan is another term for an Athabascan, a group of peoples inhabiting Alaska, Canada, the Pacific coast of California and Oregon, believed to be part of the second great migration of peoples into the Americas.
Today they speak American/Canadian English, but their own native language is part of the great Athapaskan/Na-Dene language family - very distantly related to Navajo and all the Apache dialects.
Your question supposes that all native languages have always remained the same as they are today or were at first contact with Europeans, which is far from correct. Languages evolve over time and it can be shown that the historic languages of native Americans developed from a much smaller number of prehistoric languages such as proto-Algonquian, proto-Siouan, proto-Athapaskan and so on.This points to all modern and historic Algonguian languages (for example) such as Blackfoot, Cheyenne, Maliseet, Powhatan, Mahican, Delaware, Ojibwe and Cree evolving from a single parent language used many thousands of years ago, before anyone was around who could witness and record it. The same for all Siouan and Athapaskan languages.One controversial theory says that all native American languages evolved from a single, even older, parent language used in north-east Asia and attempts have been made to show correlations between many of the different historic language groups. One obvious one is the prefix ni- or n- for "I" or "me" which is found in many parts of the Americas.Since we are talking about a time before written history when no native Americans were writing anything about their languages - and a time before the historic tribal groups had developed and before their languages as we recognise them had evolved - we can only speculate, guess and theorise about the prehistoric origins of native American languages.
The Aboriginals had many languages.
21 languages
If you mean native American language, it is impossible for anyone today to find the answer. The native languages that we know today in the Americas evolved very slowly over many tens of thousands (even hundreds of thousands) of years from very ancient prehistoric languages spoken in north-east Asia and during the migrations of native people from Asia into the Americas.These prehistoric languages are not known, but they evolved into the ancestor languages of every language spoken by native Americans. There were probably many waves of migrations represented today by the major language families: Je-Tupi-Carib, Proto-Athapaskan, Proto-Algonkian, Proto-Siouan, Proto-Uto-Aztecan, Macro-Tucanoan, Maya-Chipaya-Yunga and many more.We can never know which of these is the oldest, but we can say with some certainty which are the newest, since these languages only developed in fairly recent times after tribes split and evolved different languages (such as Crow, a Siouan language that evolved from Hidatsa).
What it means is that the country has many languages
A person who speaks many languages is called a polyglot. Multilingual ie a multilingual person speaks many languages
There are 15 American languages.
8 LANGUAGES