升
ショウ, ます, のぼる
measuring box, 1.8 liter
JLPT1 G7 S4 F2077
The relevant oracle bone form of this character shows a measuring scoop + a hand → raise a *measuring implement* to perform dry or liquid measurements → *measuring box*; *unit of measurement* (approximately 1.8 liters) → *box seat*.
[Full Kanji Etymology List]