I am confused about noun stems.
I've checked in a couple of textbooks, some online sources, and an article on this website, and I still don't understand.
First declension nouns have stems in "a"? I don't get that. "a" endings, okay, but I don't see an "a" in the stem of puella.
Second declension with stems in "o"? As in "colonus"? What about ager and puer?
Third in consonants? I think I get that. "Rex" ends in a consonant.
Am I just missing the point?
I would love to understand.