Where does “quaderna” come from?

quaderna (Vulgar Latin) comes from Latin quaterni, from Latin quater, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres — and.

Ancestry of “quaderna”, step by step

StepLanguageWordMeaning
1Latinquaternifour each; four at a time
2Latinquaterfour times
3Latinquattŭorfour; 4
4Portuguesequartoordinal form of quatro; fourth; quarter; fourth;...
5Old Portuguesequartoquarter
6Latinquārtusfourth
7Proto-Indo-Europeankʷeturtos
8Proto-Indo-Europeankʷetwóresfour
9Proto-Indo-Europeankʷe-and

Words derived from “quaderna

Every word from Proto-Indo-European kʷe-Every word from Proto-Indo-European kʷetwóresEvery word from Proto-Indo-European kʷeturtos