First, it's important to note the origins of the name.

Several theories have emerged regarding the origins of the name "hussars," of which historians generally accept two as the most probable.

The first theory claims that the term "hussars" comes directly from the Serbian language, from the word "usar" or "gusar," meaning a mounted warrior, corsair, or highwayman.

The second theory, in turn, derives its etymology from the Hungarian language, specifically from the word "hussar," a combination of two Hungarian words: húsz (twenty) and ár (fief or landed estate).

The first known document mentioning hussars is a treasury register from 1500, written in Latin, entitled "Regestrum in quo diversi computi ti rationem...", in which the oldest record of hussars enlisting in the service of the Jagiellonian dynasty was found. In this document, several hussars are mentioned by name.