Comparative evidence

1.u̯elg

• Hitt. walk- ? (EDHIL: 949f.)

• Hitt. walganu- ? (EDHIL: 949f.). These verbs are attested in damaged contexts, and their meaning cannot be established. Oettinger (1979: 234) tentatively suggests that these verbs denote an action with unpleasant consequences and compares it to OHG walkan 'roll', 'press', Skt. valgati 'jump'.

References

EDHIL = Kloekhorst, A. 2008. Etymological Dictionary of the Hittite Inherited Lexicon. Brill.
Oettinger 1979 = Oettinger, N. 1979. Die Stammbildung des hethitischen Verbums. Hans Carl.