Where does “二十” come from?

二十 (Japanese) comes from Japanese 二, from Middle Chinese 二 — two.

二十 (Japanese): twenty; 20

Definitions

twenty; 20

Ancestry of “二十”, step by step

二十 traces back through two separate lines of ancestry.

via Japanese 二

Step	Language	Word	Meaning
1	Japanese	二	two, 2; second; two
2	Middle Chinese	二	two

via Japanese 十

Step	Language	Word	Meaning
1	Japanese	十	ten, 10; a ten-year-old
2	Middle Chinese	十	—

Words derived from “二十”

Every word from Middle Chinese 二 →Every word from Japanese 二 →