Comparative evidence

h₂ei̯s

• OInd. iṣ-/ich- 'seek', 'desire' (Whitney 1885: 9); 'endeavour to obtain', 'strive', 'endeavour to make favourable'; 'wish', 'long for', 'request'; 'intend'; 'expect', 'ask'; 'assent', 'be favourable', 'concede'; 'choose'; 'acknowledge', 'maintain', 'regard', 'think' (MW: 169)

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.