I thought it was this way in English because the wealthy aristocrats (Norman invaders) spoke French, so they used the French words for the meat on their plates

I thought it was this way in English because the wealthy aristocrats (Norman invaders) spoke French, so they used the French words for the meat on their plates (beef, lamb, pork, etc) while the poor peasants who raised the animals called them by their Anglo-Saxon Germanic names (cow, sheep, pig, etc.)