Where does “sin” come from?

sin (Latin) comes from Latin nē, from Latin gēns, from Proto-Italic *gentis, from Proto-Indo-European ǵénh₁tis, from Proto-Indo-European ǵenh₁- — to produce, to beget, to give birth.

sin (Latin): if however, if on the contrary, but if

Definitions

if however, if on the contrary, but if

Ancestry of “sin”, step by step

sin traces back through two separate lines of ancestry.

via Latin nē

Step	Language	Word	Meaning
1	Latin	nē	no; not
2	Latin	gēns	Roman clan (related by birth or marriage and sharing a common name and often united by certain religious rites)
3	Proto-Italic	*gentis	—
4	Proto-Indo-European	ǵénh₁tis	birth, production
5	Proto-Indo-European	ǵenh₁-	to produce, to beget, to give birth

via Latin sī

Step	Language	Word	Meaning
1	Latin	sī	if, supposing that
2	Proto-Italic	sei	so, thus
3	Proto-Indo-European	só	this; that

Every word from Proto-Indo-European ǵenh₁- →Every word from Proto-Indo-European ǵénh₁tis →Every word from Proto-Italic *gentis →