Comparative evidence

1.i̯eh₂

• OInd. yā- 'go' (Whitney 1885: 131); 'proceed', 'move', 'walk', 'set out', 'march', 'advance', 'travel', 'journey'; 'go away', 'withdraw', 'retire'; 'flee', 'escape'; 'enter', 'approach', 'arrive' (at), 'reach'; 'implore', 'solicit';  'extend' (to); 'last' (for); 'pass away', 'elapse' (said of time); 'vanish', 'disappear' (as wealth); 'come to pass', 'prosper', 'succeed'; 'proceed', 'behave', 'act'; 'find out', 'discover'; 'learn' (a science); 'undertake', 'undergo' (MW: 849)

• OInd. yā- 'going', 'moving' (MW: 849)

• OInd. yā- 'going', 'car' (MW: 849)

References

MW = Monier-Williams, M. 1899. A Sanskrit-English Dictionary. Clarendon Press.
Whitney 1885 = Whitney W. D. 1885. The roots, verb forms and primary derivatives of the Sanskrit language. A supplement to his Sanskrit grammar. Leipzig.