noun / verb
taint
TAYNT/teɪnt/
A trace of something harmful or discrediting, or the act of introducing it.
A drop of muddy liquid taints the clear water in the glass.

Etymology
The dyeing ancestor connects taint with staining rather than simply damaging something. This strand merged with a separate verb meaning “to convict,” overlapping the ideas of imparting color and marking with disgrace.
In context
cheap materials that taint whiskey
More examples
- The scandal leaves a taint on the company's reputation.
- Bacteria can taint food that sits out too long.
- The investigation finds no taint of corruption in the bidding process.
Forms
taint · taints · tainted · tainting
Similar words
- contaminate
- Emphasizes introducing impurities, especially into food, water, or materials.
- corrupt
- Emphasizes damage to moral integrity rather than physical purity.
- stain
- Suggests a visible mark or lasting damage to reputation.