Tehuilotl (glass, crystal) can come in various colors, and therefore it will appear in compound words such as this one for amethyst, which apparently has a red tone. See: https://florentinecodex.getty.edu/search?term=tehuilotl&view=text&filters=
a ruby, a precious stone (see also tlapaltic teoxihuitl) (see Molina)
a ruby, a precious stone (see also tlapalteoxihuitl) (see Molina); here, the tlapal- refers to the color red (SW)
to strengthen oneself or comfort oneself; to strengthen another person; to fortify something
strength; animosity
a colored picture-writing; a pictorial manuscript or lienzo (cloth painting)
Vermilion Flycatcher, a bird (see Hunn, attestations)