Where does “Fitz-” come from?

Fitz- (English) comes from Anglo-Norman fitz, from Old Irish du-, from Sicilian di, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti, from Proto-Indo-European pósti — afterwards, post; by, at.

Fitz- (English): Son of; especially used for the illegitimate sons...

Definitions

  1. Son of; especially used for the illegitimate sons...

Ancestry of “Fitz-”, step by step

StepLanguageWordMeaning
1Anglo-NormanfitzAlternative form of filz
2Old Irishdu-
3SiciliandiUsed to indicate possession, after the thing owned and before the owner; of; ’s
4Latinof; concerning; about
5Latinpostbehind; after, since, besides, except; behind,...
6Latinposteablative singular of postis
7Proto-Italicpostibehind, after
8Proto-Indo-Europeanpóstiafter
9Proto-Indo-Europeanpósafterwards, post; by, at

Words derived from “Fitz-

Every word from Proto-Indo-European pós