# Mecum

> English word · Proper noun

## Definitions
1. A surname from Irish.

## Etymology
Unexplained. Perhaps an Anglicized form of Irish Mac Thom (“son of Tom”).

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