Where does “quarantaine” come from?

quarantaine (French) comes from Italian quarantina, from Italian quaranta, from Late Latin quarranta, from Latin quadrāgintā, from Proto-Indo-European kʷetwr̥̄ḱomt, from Proto-Indo-European kʷétwr̥dḱomt, from Proto-Indo-European kʷetwr̥-, from Proto-Indo-European kʷetwóres — and.

quarantaine (French): a number or group of or about forty

Definitions

  1. a number or group of or about forty

Ancestry of “quarantaine”, step by step

quarantaine traces back through two separate lines of ancestry.

via Italian quarantina

StepLanguageWordMeaning
1Italianquarantinaapproximately forty; period of forty days
2Italianquarantaforty
3Late Latinquarranta
4Latinquadrāgintāforty; 40
5Proto-Indo-Europeankʷetwr̥̄ḱomt
6Proto-Indo-Europeankʷétwr̥dḱomtforty
7Proto-Indo-Europeankʷetwr̥-four, fourfold
8Proto-Indo-Europeankʷetwóresfour
9Proto-Indo-Europeankʷe-and

via French quarante

StepLanguageWordMeaning
1Frenchquaranteforty
2Old Frenchquaranteforty

Words derived from “quarantaine

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