Where does “planeamento” come from?

planeamento (Portuguese) comes from Portuguese planear, from Portuguese Plano, from Latin plānus, from Ancient Greek πλάνος, from Ancient Greek πλανάω, from Proto-Indo-European pl-néh₂-ti.

Ancestry of “planeamento”, step by step

Step	Language	Word	Meaning
1	Portuguese	planear	Alternative form of planejar
2	Portuguese	Plano	flat; level having the same height at all places
3	Latin	plānus	level, flat, even
4	Ancient Greek	πλάνος	wandering
5	Ancient Greek	πλανάω	to make to wander, lead wandering about; to lead...
6	Proto-Indo-European	pl-néh₂-ti	—

Every word from Proto-Indo-European pl-néh₂-ti →Every word from Ancient Greek πλανάω →Every word from Ancient Greek πλάνος →