> Words can and often do have multiple appropriate meanings.
You seem to greatly overestimate our ability to distinguish among different word meanings based on context. The meanings are not all appropriate when they conflict. I first discovered this conflicting meaning of "Caucasian" when discussing something with a Polish friend. Unlike me, he did not default to the popular American meaning of "Caucasian". That led to us misunderstanding each other for a few minutes. "Indian" has caused me enough headaches online. I'll reiterate: not everyone defaults to popular American (mis-)usages.
Leave aside the matter of popular usage for the time being. Do you also think that if population geneticists were to use all these conflicting meanings, it would cause them no problems at all?
I hope my explanation also disabuses you of the notions that I'm "[insisting] upon only a single meaning for each word" or trying to "rule out all words with spurious etymologies". Don't worry about me having a considerably poorer vocabulary; I do extremely well on most tests. When I write, people may have trouble understanding my point, but it's never been because I used to wrong words. Addendum: if it were to turn out that I have used the wrong words, I'd learn, and correct myself.
You seem to greatly overestimate our ability to distinguish among different word meanings based on context. The meanings are not all appropriate when they conflict. I first discovered this conflicting meaning of "Caucasian" when discussing something with a Polish friend. Unlike me, he did not default to the popular American meaning of "Caucasian". That led to us misunderstanding each other for a few minutes. "Indian" has caused me enough headaches online. I'll reiterate: not everyone defaults to popular American (mis-)usages.
Leave aside the matter of popular usage for the time being. Do you also think that if population geneticists were to use all these conflicting meanings, it would cause them no problems at all?
I hope my explanation also disabuses you of the notions that I'm "[insisting] upon only a single meaning for each word" or trying to "rule out all words with spurious etymologies". Don't worry about me having a considerably poorer vocabulary; I do extremely well on most tests. When I write, people may have trouble understanding my point, but it's never been because I used to wrong words. Addendum: if it were to turn out that I have used the wrong words, I'd learn, and correct myself.