An act of bringing disgrace or a loss of honor

कलंक लगाना

English Usage: His actions were a serious attaint to his reputation.

Hindi Usage: उसके कार्यों ने उसकी प्रतिष्ठा पर गंभीर कलंक लगा दिया।

To accuse or to bring dishonor upon someone

इस आरोप के द्वारा अपमानित करना

English Usage: They tried to attaint her character with false accusations.

Hindi Usage: उन्होंने झूठे आरोपों के साथ उसके चरित्र को अपमानित करने की कोशिश की।