Where does “zéroième” come from?

zéroième (French) comes from French zéro, from Italian Zero, from New Latin zerum, from Medieval Latin zephirum, from Arabic صِفْر, from Sanskrit शून्य, from Proto-Indo-European ḱówH-.

zéroième (French): zeroth

Definitions

zeroth

Ancestry of “zéroième”, step by step

Step	Language	Word	Meaning
1	French	zéro	zero, nought, oh; zero, nought; zero
2	Italian	Zero	zero
3	New Latin	zerum	—
4	Medieval Latin	zephirum	zero
5	Arabic	صِفْر	zero, nothing, empty, void; nothing, cipher;...
6	Sanskrit	शून्य	zero; cipher, cypher; blank, deserted
7	Proto-Indo-European	ḱówH-	—

Every word from Proto-Indo-European ḱówH- →Every word from Sanskrit शून्य →Every word from Arabic صِفْر →