セン, そ.める, ぞ.め, ぞめ, そ.まる, し.みる, じ.みる, し.み, し.める, そめ

dye, color, paint, stain, print

JLPT1 G6 S9 F837

The relevant seal inscription form is an element combining thread and a box for holding dye + water (for emphasis/clarification) → *dye* (v.) → *soak*; *color* (v.); seep in*; *steep in*; *spot/smudge*; *stain*.

[Full Kanji Etymology List]