Where does “πλακόεντα” come from?

πλακόεντα (Ancient Greek) comes from Ancient Greek πλακοῦς, from Ancient Greek πλακόεις, from Ancient Greek πλάξ, from Proto-Hellenic pləks, from Proto-Indo-European pleh₂- — flat.

Ancestry of “πλακόεντα”, step by step

StepLanguageWordMeaning
1Ancient Greekπλακοῦςflat cake
2Ancient Greekπλακόειςflat
3Ancient Greekπλάξanything flat and broad
4Proto-Hellenicpləks
5Proto-Indo-Europeanpleh₂-flat

Words derived from “πλακόεντα

Every word from Proto-Indo-European pleh₂-Every word from Proto-Hellenic pləksEvery word from Ancient Greek πλάξ