Where does “Cystennin” come from?

Cystennin (Welsh) comes from Ancient Greek Κωνσταντινούπολις, from Ancient Greek πόλις, from Proto-Hellenic ptólis, from Proto-Indo-European tpólHis, from Proto-Indo-European tpelH- — fortification, city.

Ancestry of “Cystennin”, step by step

Cystennin traces back through two separate lines of ancestry.

via Ancient Greek Κωνσταντινούπολις

StepLanguageWordMeaning
1Ancient GreekΚωνσταντινούπολιςConstantine’s city
2Ancient Greekπόλιςcity; a whole country, as dependent on and called...
3Proto-Hellenicptóliscity
4Proto-Indo-EuropeantpólHis
5Proto-Indo-EuropeantpelH-fortification, city

via Latin Constantinus

StepLanguageWordMeaning
1LatinConstantinus
2Latin-īnusof or pertaining to; -ine
3Proto-Italic-īnosof/belonging to
4Proto-Indo-European-iHnosCreates adjectives of materials
5Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European tpelH-
Cystennin — Etymology, Origin & Word History | Etymology Explorer