श्रम्

From Proto-Indo-European *ḱremh₂- (“to be or become limp”); compare Ancient Greek κρεμάννυμι (kremánnumi, “to hand”) and perhaps κρημνός (krēmnós, “overhanging bank of a river”).

श्रम् • (śram) class 4

1. to be or become weary or tired, be tired of doing anything
2. to make effort, exert oneself (esp. in performing acts of austerity), labor in vain
3. to overcome, conquer, subdue
4. to speak to, address, invite

• Monier Williams (1899) “श्रम्”, in A Sanskrit–English Dictionary, […], new edition, Oxford: At the Clarendon Press, →OCLC, page 1096/1.
• William Dwight Whitney, 1885, The Roots, Verb-forms, and Primary Derivatives of the Sanskrit Language, Leipzig: Breitkopf and Härtel, page 178
• Mayrhofer, Manfred (1996) Etymologisches Wörterbuch des Altindoarischen [Etymological Dictionary of Old Indo-Aryan]‎ (in German), volume 2, Heidelberg: Carl Winter Universitätsverlag, page 664