セツ, ぬす.む, ひそ.か
stealth, steal, secret, private, hushed
JLPT1 G7 S9 F1871
Originally 穴# hole + an element combining 米 rice and a variant of 廾 pair of hands → insect that darts into a hole and consumes rice stealthily → *steal*. Over time, 米 was replaced by the similar 釆 scattered seeds, while the pair of hands element was dropped.
[Full Kanji Etymology List]