There is a myriad of English glossary original from French words. Grasping fundamental Français facilitates the learning efficiency of byzantine cognates. For example, 'ennuyeuse ou ennuyeux' in French means boring so that there is an English word 'ennui' .
How about abattoir (abattre in French), aplomb (à plomb in French), camaraderie (comrade in French), demur (demourer in French), facile (facile in French), etc.
Bonne chance!