stain

An act that brings discredit to the person who does it.

A soiled or discolored appearance.

“the wine left a dark stain”

A symbol of disgrace or infamy.

The state of being covered with unclean things.

(microscopy) a dye or other coloring material that is used in microscopy to make structures visible.

Make dirty or spotty, as by exposure to air; also used metaphorically.

Color for microscopic study.

Color with a liquid dye or tint.

“people knew how to stain glass a beautiful blue in the middle ages”

Produce or leave stains.

“Red wine stains the table cloth”