"Blemish" is a word in ENGLISH

Any mark of deformity or injury, whether physical or
moral; anything that diminishes beauty, or renders imperfect that which
is otherwise well formed; that which impairs reputation.

To tarnish, as reputation or character; to defame.

To mark with deformity; to injure or impair, as
anything which is well formed, or excellent; to mar, or make defective,
either the body or mind.