Where does “甲辰” come from?

甲辰 (Japanese) comes from Japanese 甲, from Middle Chinese 甲.

甲辰 (Japanese): Wood Dragon, the forty-first term in the sexagenary cycle

Definitions

  1. Wood Dragon, the forty-first term in the sexagenary cycle

Ancestry of “甲辰”, step by step

甲辰 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesecarapace, shell; something A; armor
2Middle Chinese

via Japanese

StepLanguageWordMeaning
1Japaneseby extension from the zodiac
2Japaneseたつ立つ to stand; 建つ to build; 発つ to leave
Every word from Middle Chinese Every word from Japanese