'Most of our termes now vsed in warres are deriued from straungers': Robert Barret's Glossary of Military Terms inThe Theorike and Practike of Moderne Warres (1598).

This article focuses on Robert Barret’s 1598 military glossary appended to his treatise *The Theorike and Practike of Moderne Warres*, which predates the first English military dictionary published anonymously in 1702. Barret, a professional soldier with extensive battlefield experience alongside foreign troops, compiled a glossary of 111 military terms of mainly French, Spanish, Italian, and Dutch origin, providing concise definitions and etymological notes based on his firsthand knowledge. The study highlights Barret’s glossary as a significant early lexicographical source documenting the influx of foreign military loanwords into Early Modern English, often offering more precise definitions than contemporary dictionaries. Furthermore, a close comparison reveals that John Florio’s 1598 bilingual dictionary *A Worlde of Wordes* drew heavily, sometimes verbatim, from Barret’s glossary, indicating Barret’s influence on subsequent English military lexicography.