Apte Sanskrit-English Dictionary
1 A spot, a mark, a dark spot (lit.); R. 13. 15.
2 (Fig.) A stain, stigma, obloquy, disrepute; vyapanayatu kalaṃkaṃ svasvabhāvena saiva Mk. 10. 34; R. 14. 37; so kulaº.
3 A fault, defect; Bh. 3. 48.
4 Rust of iron. Comp. hṛt m. an epithet of Śiva