Where does “quadravigesimal” come from?

quadravigesimal (English) comes from English quadra, from Latin quadra, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres — and.

quadravigesimal (English): A number system with base twenty-four, using the digits 0–9 and A–N (or Greek α-ω without numerals)

Definitions

  1. A number system with base twenty-four, using the digits 0–9 and A–N (or Greek α-ω without numerals)

Ancestry of “quadravigesimal”, step by step

quadravigesimal traces back through two separate lines of ancestry.

via English quadra

StepLanguageWordMeaning
1EnglishquadraThe plinth, or lowest member, of any pedestal,...
2Latinquadrasquare
3Latinquattŭorfour; 4
4Portuguesequartoordinal form of quatro; fourth; quarter; fourth;...
5Old Portuguesequartoquarter
6Latinquārtusfourth
7Proto-Indo-Europeankʷeturtos
8Proto-Indo-Europeankʷetwóresfour
9Proto-Indo-Europeankʷe-and

via English vigesimal

StepLanguageWordMeaning
1EnglishvigesimalOccurring in intervals of twenty; To the base...
2LatinvigesimusAlternative form of vicesimus; twentieth
3Latinvīgintītwenty
4Latinquīnquefive; 5
5Proto-Italickʷenkʷefive
6Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European kʷe-
quadravigesimal — Etymology, Origin & Word History | Etymology Explorer