The Proto-Turkic word *adɨr-
Word *adɨr-
Meaning to separate

Comments
S. A. Starostin, A. V. Dybo, O. A. Mudrak - An Etymological Dictionary of Altaic Languages, 2003, Brill

Other words that might be of interest
*bö̅l- ‘to divide, separate’, *borī ‘to divide’