にじnijimu
1.

To gradually spread or seep out from within an object, manifesting as a visible presence on the surface, often referring to liquids like blood or ink.

2.

To appear blurred or indistinct due to moisture or emotional expression, creating an effect where outlines become unclear, such as tears affecting vision or rain distorting light.

3.

To subtly become apparent or reveal oneself, often used in contexts where underlying feelings or implications start to show through actions or statements.

Example:

ドレスを洗ったら色がにじんだ。