The Proto-Turkic word *gür
Word *gür
Meaning courageous, thick, abundant, wide, broad, well fed
Synonyms *bol, *baŕɨk, *gēŋ, *jogan / jojga / njogan

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
*bedü-k ‘big, high’, *ẹ̄g-id- ‘to grow, bring up, high, raised up, huge’, *ulug ‘big, great’, *deg- / dög- / dog- ‘round’, *tom- ‘round’, *kičük / kičüg ‘small, little’