bouvier

drover (person who drives cattle over long distances); herdsman, cattleman (man who raises or tends cattle); cattle dog (type of dog used for droving cattle); plowman (man who plows land with a plough)

Inherited from Old French buvier, from Vulgar Latin, Late Latin bovārius (“cow herder”), from Latin bovārius (“of cattle”), from bos. This form may be semi-learned, and based on bœuf, or altered from the Old French boier.