Comparative evidence

ḱemh₂

• OInd. śam-/śim- 'labor', 'be quiet' (Whitney 1885: 171) (Whitney sees this as 2 homonymous roots); 'toil' (at), 'fatigue one's self', 'exert one's self' (esp. in performing ritual acts); 'prepare', 'arrange'; 'become tired', 'finish', 'stop', 'come to an end', 'rest', 'be quiet', 'be calm', 'be satisfied', 'be contented'; 'cease', 'be allayed', 'be extinguished'; 'put an end' (to), 'hurt', 'injure', 'destroy' (MW: 1053)

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.