Where does “nonante-sept” come from?

nonante-sept (French) comes from French sept, from Middle French sept, from Old French set, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

nonante-sept (French): ninety-seven

Definitions

ninety-seven

Ancestry of “nonante-sept”, step by step

nonante-sept traces back through two separate lines of ancestry.

via French sept

Step	Language	Word	Meaning
1	French	sept	seven
2	Middle French	sept	seven
3	Old French	set	seven; third-person singular present indicative...
4	Latin	Septem	seven; 7
5	Proto-Italic	septem	seven
6	Proto-Indo-European	septḿ̥	seven

via French nonante

Step	Language	Word	Meaning
1	French	nonante	ninety
2	Old French	nonante	ninety
3	Latin	nonaginta	ninety; 90
4	Latin	nūnāgintā	—
5	Proto-Indo-European	h₁néwn̥(d)ḱomt	nine tens
6	Proto-Indo-European	h₁néwn̥	nine

Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Italic septem →Every word from Latin Septem →