Where does “Untel” come from?

Untel (French) comes from French un, from Middle French un, from Old French un, from Latin ūnus, from Old Latin oinos, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

Untel (French): so-and-so

Definitions

so-and-so

Ancestry of “Untel”, step by step

Untel traces back through two separate lines of ancestry.

via French un

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

via French tel

Step	Language	Word	Meaning
1	French	tel	such; one
2	Old French	tel	such a
3	Latin	tālis	such
4	Proto-Indo-European	tód	demonstrative pronoun; that; it
5	Proto-Indo-European	to-	it; that; the, that
6	Proto-Indo-European	só	this; that

Every word from Proto-Indo-European óynos →Every word from Proto-Italic oinos →Every word from Old Latin oinos →