Where does “Pachytylus” come from?

Pachytylus (Translingual) comes from Ancient Greek πᾰχῠ́ς, from Proto-Hellenic *pəkʰús.

Ancestry of “Pachytylus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	πᾰχῠ́ς	thick
2	Proto-Hellenic	*pəkʰús	—

Pachytylus — Etymology, Origin & Word History | Etymology Explorer