Where does “penitence” come from?

penitence (Middle French) comes from Latin paenitentia, from Ancient Greek μετάνοια, from Ancient Greek μετανοέω, from Ancient Greek νοέω, from Ancient Greek νόος, from Ancient Greek σφαῖρα, from Ancient Greek -ειδής, from Ancient Greek -ής — Creates action nouns or result nouns from verbs;...

penitence (Middle French): penitence (repentance for one's sins)

Definitions

penitence (repentance for one's sins)

Ancestry of “penitence”, step by step

Step	Language	Word	Meaning
1	Latin	paenitentia	repentance, penitence, regret; penance;...
2	Ancient Greek	μετάνοια	afterthought, repentance
3	Ancient Greek	μετανοέω	to perceive afterwards or too late; to change...
4	Ancient Greek	νοέω	to perceive, observe, see, notice; to think,...
5	Ancient Greek	νόος	mind; an act of mind; the sense or meaning of a...
6	Ancient Greek	σφαῖρα	ball, globe, sphere
7	Ancient Greek	-ειδής	like, connected to, from the nature of, full of;...
8	Ancient Greek	-ής	adjective suffix
9	Proto-Indo-European	-ēs	Primarily forms adjectival bahuvrīhi compounds
10	Proto-Indo-European	-ess	—
11	Proto-Indo-European	-os	Creates action nouns or result nouns from verbs;...

Every word from Proto-Indo-European -os →Every word from Ancient Greek -ειδής →Every word from Ancient Greek σφαῖρα →