I don't think so.
I think the vocabulary would come along pretty easily if we weren't as concerned with how we describe each other as with how we treat each other.
It's not so simple.
For example, "Indian" is a term I use to identify myself, but it's problematic because it's a misnomer by Columbus based on a historical accident. Gerald Vizenor, an Anishinaabe writer and political activist, always writes "
indian" in italics and lower case to emphasize this, and has coined the term "postindian" to describe the condition of those of us who live in modern times and are trying to move past the legacy of colonization.
For example, "American Indian" suffers from the same problems, despite clarifying the ambiguities between American Indians and Indians from the Indian subcontinent, but it also has important political uses since "Indian" is the language used in most treaties between tribes and the US government.
For example, "Native American" is problematic because it emphasizes "American" rather than our tribal sovereignty, and it also has a tendency to leave out Alaskan Natives and Native Hawaiians. And the issue of tribal sovereignty and nationhood is Very Important: we were not Americans by choice.
For example, "First Nations" is better, but it's not as well-known in the US, and so while emphasizing our nationhood, it does not have the political clout and usage that the term "Indian" gains us in American politics.
For example, "Zuni" is better because it's my actual tribe, but even this term is a name given to us by the Spanish (in our case, we're somewhat more fortunate, since at least it's based on an actual family of some of my relatives, rather than a foreign term or a word for us from another tribe), and is not based in how we actually refer to ourselves.
For example, "Shiwi" is ideal, because it's what people of my tribe call themselves, but generally no one except another Shiwi would be familiar with this terminology, making it not very useful in the wider world.
And what if I want to refer to myself in the context of other American Indians or Native Americans and Alaskan Natives and Native Hawaiians, which of course, I do all the time?
There is the good term "Indigenous", which I love because of its worldwide broadness, referring also to indigenous people around the globe, but it's non-specificity is also a hindrance if I want to discuss Native Americans or American Indians in the context of the US.
...tell me again how this is easy?
I'm only
starting to understand how difficult it is. I didn't understand any of this stuff when I was younger.