Where does “quattrovalvole” come from?

quattrovalvole (Italian) comes from Italian quattro, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

quattrovalvole (Italian): 4-valve; Pertaining to internal combustion engine technology that uses 4 valves per cylinder, 2 inlet and 2 exhaust ports

Definitions

  1. 4-valve; Pertaining to internal combustion engine technology that uses 4 valves per cylinder, 2 inlet and 2 exhaust ports

Ancestry of “quattrovalvole”, step by step

quattrovalvole traces back through two separate lines of ancestry.

via Italian quattro

StepLanguageWordMeaning
1Italianquattrofour; either of the quarter hours after midnight...
2Latinquattŭorfour; 4
3Portuguesequartoordinal form of quatro; fourth; quarter; fourth;...
4Old Portuguesequartoquarter
5Latinquārtusfourth
6Proto-Indo-Europeankʷeturtos
7Proto-Indo-Europeankʷetwóresfour
8Proto-Indo-Europeankʷe-and

via Italian valvole

StepLanguageWordMeaning
1Italianvalvole
Every word from Proto-Indo-European kʷe-