Where does “tracheola” come from?

tracheola (Italian) comes from Italian trachea, from Latin trachia, from Ancient Greek τραχεῖα, from Ancient Greek τραχύς, from Proto-Hellenic tʰrākʰús.

tracheola (Italian): tracheole

Definitions

tracheole

Ancestry of “tracheola”, step by step

Step	Language	Word	Meaning
1	Italian	trachea	trachea, windpipe; trachea
2	Latin	trachia	The windpipe, trachea
3	Ancient Greek	τραχεῖα	windpipe
4	Ancient Greek	τραχύς	jagged; prickly; rugged
5	Proto-Hellenic	tʰrākʰús	—

Every word from Proto-Hellenic tʰrākʰús →Every word from Ancient Greek τραχύς →Every word from Ancient Greek τραχεῖα →