Where does “Petasites” come from?

Petasites (Translingual) comes from Ancient Greek πετασῖτις, from Ancient Greek πέτασος, from Ancient Greek πετάννυμι, from Proto-Indo-European peth₂- — to spread out; to fly.

Petasites (Translingual): genus

Definitions

genus

Ancestry of “Petasites”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	πετασῖτις	butterbur (Petasites hybridus)
2	Ancient Greek	πέτασος	broad-brimmed hat, commonly worn by young men;...
3	Ancient Greek	πετάννυμι	I spread out, open; I am spread out on all sides,...
4	Proto-Indo-European	peth₂-	to spread out; to fly

Every word from Proto-Indo-European peth₂- →Every word from Ancient Greek πετάννυμι →Every word from Ancient Greek πέτασος →