Where does “七草の節句” come from?

七草の節句 (Japanese) comes from Japanese 七, from Old Japanese 七, from Old Japanese なの.

七草の節句 (Japanese): The festival of seven herbs; also known as 人日 (じんじつ, jinjitsu): "human day," one of the five seasonal festivals (五節句 (gosekku). It is celebrated on January 7

Definitions

The festival of seven herbs; also known as 人日 (じんじつ, jinjitsu): "human day," one of the five seasonal festivals (五節句 (gosekku). It is celebrated on January 7

Ancestry of “七草の節句”, step by step

七草の節句 traces back through 3 separate lines of ancestry.

via Japanese 七

Step	Language	Word	Meaning
1	Japanese	七	seven, 7; a seven; a gambler
2	Old Japanese	七	seven, 7
3	Old Japanese	なの	—

via Japanese 草

Step	Language	Word	Meaning
1	Japanese	草	grass; a weed; a herb
2	Middle Chinese	草	—

via Japanese 節句

Step	Language	Word	Meaning
1	Japanese	節句	a seasonal festival day, such as 子供の日 on 5 May...
2	Japanese	節	a knuckle, a joint; melody; point

Every word from Old Japanese なの →Every word from Old Japanese 七 →Every word from Japanese 七 →