# Theedom

> English word · Proper noun

## Definitions
1. A surname from Middle English.

## Etymology
From Middle English thedom, thedome, thedam (“prosperity, success”); from thee (“to thrive, to prosper”) + -dom.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/theedom