Comparative evidence

1.h₁eu̯h₁, 1.h₁eu̯h₂, 1.h₁eu̯h₃

• Hitt. iyawa- 'recover', 'be healed' (HED: 353f.). García Ramón (2016) connects Lat. iuvō 'to help', Skt. av- 'to help, protect' with Hitt. huwai- 'run', PIE *h2euh1- 'to help', assuming the development 'run' > 'help' for this root.

References

HED = Puhvel, J. 1984 - . Hittite Etymological Dictionary. Mouton.
García Ramón 2016 = García Ramón, J. L. 2016. Vedic indrotá in the Ancient Near East and the shift of PIE *h2euh1 ‘run’ > Core IE ‘help’, ‘favour’. Sahasram Ati Srajas. Indo-Iranian and Indo-European Studies in Honor of Stephanie W. Jamison. Eds.: D. Gunkel et al. Beech Stave Press. P. 64-81.