C1 verb /ˈtɑːrnɪʃ/
tarnish
धूसर करना
Meaning
To lose luster, especially as a result of exposure to air or moisture; to damage reputation.
Example
The silver jewelry tarnished quickly when left in the open air.
चांदी के आभूषण खुले हवा में रखने पर जल्दी धूसर हो गए।