Where does “ĉi-” come from?

ĉi- (Esperanto) comes from French chaque, from Middle French chasque, from Middle French chascun, from Old French chascun, from Vulgar Latin cascunum, from Latin catunum, from Ancient Greek κατά, from Ancient Greek καταστερίζω — to be/become dry; to burn, to glow; hearth.

ĉi- (Esperanto): each-, every-, all-

Definitions

  1. each-, every-, all-

Ancestry of “ĉi-”, step by step

ĉi- traces back through two separate lines of ancestry.

via French chaque

StepLanguageWordMeaning
1Frenchchaqueeach; every
2Middle Frenchchasqueeach
3Middle Frenchchascuneach one; every one; each; every
4Old Frenchchascuneach one; every one; each; every
5Vulgar Latincascunum
6Latincatunumeach, each one
7Ancient Greekκατά
8Ancient Greekκαταστερίζωto place among the stars; I put among the stars
9Ancient Greekἀστήρa celestial body; illustrious person; starfish
10Proto-Hellenicastḗrstar
11Proto-Indo-Europeanh₂stḗrstar
12Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth

via English each

StepLanguageWordMeaning
1EnglisheachAll; every; For one; apiece; per; Every one;...
2Middle Englishecheeach; Alternative form of ache
3Old Englisheċeache
4Proto-West Germanic*aki
5Proto-Germanicakizache, pain
6Armenianաքիսweasel, least weasel, "Mustela nivalis"
7Old Armenianաքիսweasel, least weasel, "Mustela nivalis"

Words derived from “ĉi-

Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Hellenic astḗr