Comparative evidence

legʰ

• Hitt. lāk- /lak- 'knock out' (a tooth), 'turn' (one's ears or eyes towards smth.), 'train' (a vine), 'fall', 'be felled' (EDHIL: 514f.)

References

EDHIL = Kloekhorst, A. 2008. Etymological Dictionary of the Hittite Inherited Lexicon. Brill.