үөс

From Proto-Turkic *ȫŕ. Also compare Bashkir үҙәк (üźək).

үөс • (üös)

1. center, core

   See synonyms at орто (orto).

   дойду үөһүгэр ― doydu üöhüger ― in the middle of the country

   хатыҥ үөһэ ― qatıñ üöhe ― birch core

2. (in the possessive form) central, main, mid-

   түүн үөһэ ― tüün üöhe ― midnight

3. (anatomy) aorta

   сис үөһэ ― sis üöhe ― main artery

• үөскээ (üöskee, “to be born”)

From Proto-Turkic *ȫt. For the sense of "gall bladder", perhaps compare Manchu ᠰᡳᠯᡥᡳ (silhi).

үөс • (üös)

1. (anatomy) bile, gall bladder