Comparative evidence

kʷei̯t

• OInd. cit- 'perceive', 'know', 'appear' (Whitney 1885: 47); 'observe', 'take notice', 'care for' (MW: 495)

• OInd. cint- 'think' (Whitney 1885: 47); 'have an idea', 'reflect', 'consider'; 'direct the thoughts' (towards), 'care' (for); 'find out'; 'take into consideration', 'treat'; 'consider', 'tax' (MW: 398)

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.