Where does “pléonasmique” come from?

pléonasmique (French) comes from French pléonasme, from Latin pleonasmus, from Ancient Greek πλεονασμός, from Ancient Greek πλεονάζω, from Ancient Greek πλείων, from Proto-Hellenic *pleíhōn, from Proto-Indo-European *pléh₁yōs — full.

Ancestry of “pléonasmique”, step by step

StepLanguageWordMeaning
1Frenchpléonasmepleonasm, redundancy
2Latinpleonasmus
3Ancient Greekπλεονασμόςabundance; excess
4Ancient Greekπλεονάζωto presume on; to be superfluous, more than...
5Ancient Greekπλείωνmore, comparative degree of πολύς; more; more,...
6Proto-Hellenic*pleíhōn
7Proto-Indo-European*pléh₁yōsfull
Every word from Proto-Indo-European *pléh₁yōsEvery word from Proto-Hellenic *pleíhōnEvery word from Ancient Greek πλείων