Where does “tossi” come from?

tossi (Friulian) comes from Latin tussio, from Latin tussis, from Proto-Italic tussis, from Proto-Indo-European tud-ti-s, from Proto-Indo-European (s)tewd-, from Proto-Indo-European stew- — to praise, laud.

tossi (Friulian): to cough

Definitions

to cough

Ancestry of “tossi”, step by step

Step	Language	Word	Meaning
1	Latin	tussio	I cough
2	Latin	tussis	cough
3	Proto-Italic	tussis	—
4	Proto-Indo-European	tud-ti-s	cough
5	Proto-Indo-European	(s)tewd-	to push, to hit
6	Proto-Indo-European	stew-	to praise, laud

Every word from Proto-Indo-European stew- →Every word from Proto-Indo-European (s)tewd- →Every word from Proto-Indo-European tud-ti-s →