From Wiktionary, the free dictionary
From Proto-Turkic *teŕ- (“to run away, flee”).
тэһии • (tehii)
- (of animals) frisky, skittish, timid
- тэһии соноҕос ― tehii sonoğos ― a frisky foal
- тэһии кыыл ― tehii kııl ― a timid beast
Gerund of тэс (tes, “to pierce”).