Tawɨ

The Southern Uto-Aztecan root *tawɨ "sun", has a wide range of reflexes.

Nahuatl:

to:na "heat", to:nal-li "heating, sun", to:natiw "sun, it goes heating"

tlawia "to light something" < *tawɨa "to illuminate", tlawilli "light, dawn" < *tawiri "light"

tlawiskalpan "dawn house" (mythological location in the eastern ocean), Tlawiskalpantekʷtli "dawn lord" (morning star deity)

tlatlawki "red" < *ta-tawi-ko

Wixárika

tau < *táwè

Stubbs

For SUA Stubbs seems to imply a short root *ta'a "sun", with a longer root *tawɨ "day". It looks to me as if the opposite is more likely and that the short forms in Cahitan and Tarahumara-Guarijío are shortened from *tawɨ.

SUA *tawɨ "sun"

Corachol-Nahuan *tawe

Tara-guarijío: Wr tawé 'day'; Tr ŕawé ‘day’

Cahitan: My taáwa(ri) 'day'

Ópatan: Eu távi/táve/táwi 'día, sol'

In Tara-Cahitan/"Sonoran" we also find a short root *ta'a: Lionnet reconstructs: #267 *ta, "sol". - (Cahitan taá'а; Guarijío tahá) Stubbs reconstructs: #2230b. *ta’a / *ta- "(day)light, sun" (Yaqui taa’a "sun"; Mayotaa’a "sol"; Raramuri ra-, ta-, ra-tá "daylight, sun, brightness".)

NUA:

Hopi: taawa "sun, day"; Hopi taavi "sunshine, sunlight"

Numic: *tapa

Takic: *tami