Where does “壬寅” come from?

壬寅 (Japanese) comes from Japanese 壬, from Japanese 兄, from Old Japanese あに, from Japanese の, from Old Japanese の, from Middle Chinese 能 — talent, ability.

壬寅 (Japanese): Water Tiger, the thirty-ninth term of the sexagenary cycle

Definitions

Water Tiger, the thirty-ninth term of the sexagenary cycle

Ancestry of “壬寅”, step by step

壬寅 traces back through two separate lines of ancestry.

via Japanese 壬

Step	Language	Word	Meaning
1	Japanese	壬	the ninth of the ten heavenly stems; something I
2	Japanese	兄	elder brother; elder brother-in-law; Short for...
3	Old Japanese	あに	—
4	Japanese	の	genitive case marker; nominative case marker in a...
5	Old Japanese	の	plain, field
6	Middle Chinese	能	talent, ability

via Japanese 寅

Step	Language	Word	Meaning
1	Japanese	寅	tiger
2	Japanese	虎	a tiger

Every word from Middle Chinese 能 →Every word from Old Japanese の →Every word from Japanese の →