What does "pecos" mean?

A river which flows through Texas and New Mexico, a tributary of the Rio Grande.

Pecos

Common synonyms include: geographic name, pecos geographic, pecos regional, pecos-associated, place name, river.

/ˈpeɪ.koʊs/ name

name ·Rare ·Advanced level

Proper Noun

1
A river which flows through Texas and New Mexico, a tributary of the Rio Grande.
2
A geographic region of Texas, situated mostly west of the Pecos River.
3
A city, the county seat of Reeves County, Texas.
4
A village in San Miguel County, New Mexico.

Borrowed from Spanish Pecos, from a Keresan term for the Pecos Pueblo.