Where does “unetvicesimus” come from?

unetvicesimus (Latin) comes from Latin vīcēsimus, from Latin vīgintī, from Latin quīnque, from Proto-Italic kʷenkʷe, from Proto-Indo-European pénkʷe — five.

unetvicesimus (Latin): twenty-first

Definitions

twenty-first

Ancestry of “unetvicesimus”, step by step

unetvicesimus traces back through 3 separate lines of ancestry.

via Latin vīcēsimus

Step	Language	Word	Meaning
1	Latin	vīcēsimus	twentieth
2	Latin	vīgintī	twenty
3	Latin	quīnque	five; 5
4	Proto-Italic	kʷenkʷe	five
5	Proto-Indo-European	pénkʷe	five

via Latin ūnus

Step	Language	Word	Meaning
1	Latin	ūnus	one, single
2	Old Latin	oinos	one
3	Proto-Italic	oinos	cardinal number 1 Previous: n/a Next: *duō;...
4	Proto-Indo-European	óynos	one; single

via Latin et

Step	Language	Word	Meaning
1	Latin	et	and; plus; though, even if
2	Proto-Italic	*et	and
3	Proto-Indo-European	h₁éti	—

Every word from Proto-Indo-European pénkʷe →Every word from Proto-Italic kʷenkʷe →Every word from Latin quīnque →