Where does “novantasei” come from?

novantasei (Italian) comes from Italian novanta, from Vulgar Latin novaginta, from Latin nonaginta, from Latin nūnāgintā, from Proto-Indo-European h₁néwn̥(d)ḱomt, from Proto-Indo-European h₁néwn̥ — nine.

novantasei (Italian): ninety-six

Definitions

ninety-six

Ancestry of “novantasei”, step by step

novantasei traces back through two separate lines of ancestry.

via Italian novanta

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

via Italian sei

Step	Language	Word	Meaning
1	Italian	sei	six; second-person singular indicative present of...
2	Latin	sex	six; 6
3	Proto-Italic	seks	six
4	Proto-Indo-European	swéḱs	six

Every word from Proto-Indo-European h₁néwn̥ →Every word from Proto-Indo-European h₁néwn̥(d)ḱomt →Every word from Latin nūnāgintā →