Where does “non-offender” come from?

non-offender (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

non-offender (English): One who is not an offender; one who has not broken the law

Definitions

One who is not an offender; one who has not broken the law

Ancestry of “non-offender”, step by step

non-offender traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English offender

Step	Language	Word	Meaning
1	English	offender	One who gives or causes offense, or does...
2	Anglo-Norman	offendour	offender

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →