Where does “tentennatore” come from?

tentennatore (Italian) comes from Italian -tore, from Latin -tor, from Proto-Italic -tōr, from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.

tentennatore (Italian): totterer, staggerer

Definitions

totterer, staggerer

Ancestry of “tentennatore”, step by step

Step	Language	Word	Meaning
1	Italian	-tore	Added to verbs to form masculine nouns and...
2	Latin	-tor	-er
3	Proto-Italic	-tōr	Forms agent nouns to verb stems
4	Proto-Indo-European	-tōr	Derives agent nouns from verbs, denoting someone...
5	Proto-Indo-European	-tor-s	—

Every word from Proto-Indo-European -tor-s →Every word from Latin -tor →Every word from Italian -tore →