# megaduke

> English word · Noun

## Definitions
1. The commander in chief of the Byzantine navy.

## Etymology
From Byzantine Greek μέγας δούξ (mégas doúx, literally “great leader”). By surface analysis, mega- + duke.

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