Etymology
* As a Dutch and North/Low German surname, from Middle Low German sasse (“Saxon”) (modern Sasse), from Old Saxon Sahso, from Proto-West Germanic *Sahsō. * As a French surname, from the ancient Germanic name Sahso, shortened pet form of compound names containing the element sahs (“Saxon”), itself from the root of the above.
Definitions & examples from Wiktionary (CC BY-SA 3.0).