Where does “principal city” come from?

principal city (English) comes from English principal, from Old French principal, from Latin principālis, from Latin prīncipium, from Latin prīnceps, from Latin primoceps, from Latin capiō, from Proto-Italic kapiō — to seize, grab; to seize; take up; lift; to take,...

Ancestry of “principal city”, step by step

principal city traces back through two separate lines of ancestry.

via English principal

StepLanguageWordMeaning
1EnglishprincipalPrimary; most important; first level in...
2Old Frenchprincipal
3Latinprincipālisfirst, original
4Latinprīncipiuma beginning, an origin, a commencement
5Latinprīncepsfirst, foremost
6Latinprimoceps
7Latincapiōto take, to capture, to catch, to seize, to take captive, to storm
8Proto-Italickapiōtake
9Proto-Italickapjōtake, seize
10Proto-Indo-Europeankh₂pyéti
11Proto-Indo-Europeankeh₂p-to seize, grab; to seize; take up; lift; to take,...

via English city

StepLanguageWordMeaning
1EnglishcityA large settlement, bigger than a town; sometimes...
2Middle Englishcitecity
3Old FrenchcitetAlternative form of cité
4Latincīvitās
5Proto-Italickeiwissociety; citizen
6Proto-Indo-Europeanḱey-to be lying down; to settle
Every word from Proto-Indo-European keh₂p-
principal city — Etymology, Origin & Word History | Etymology Explorer