Where does “Sidney” come from?

Sidney (English) comes from Old English *Sīdaneġ, from Old English sīd, from Proto-West Germanic *sīd, from Proto-Germanic sīdaz, from Proto-Indo-European sēy-, from Proto-Indo-European ḱe- — demonstrative particle; here; this, here.

Ancestry of “Sidney”, step by step

Sidney traces back through two separate lines of ancestry.

via Old English *Sīdaneġ

StepLanguageWordMeaning
1Old English*Sīdaneġ
2Old Englishsīdwide, broad, spacious, ample, extensive, vast,...
3Proto-West Germanic*sīd
4Proto-Germanicsīdazdrooping, hanging down, pendulous, long,...
5Proto-Indo-Europeansēy-to send, throw, drop, sow, deposit; to linger
6Proto-Indo-Europeanḱe-demonstrative particle; here; this, here

via English Sydney

StepLanguageWordMeaning
1EnglishSydneyand the most populous city in Australia
2FrenchSaint-Denis

Words derived from “Sidney

Every word from Proto-Indo-European ḱe-Every word from Proto-Indo-European sēy-Every word from Proto-Germanic sīdaz