douceur, gratuity, "tip."
dilettante, an expert in art of music.
distingué, distinguished in looks and manners.
de trop, in the way (one too many).
esprit de corps, mutual understanding between people of the same cloth, etc.
entente cordiale, a pleasant understanding.
enfant gâté, a spoiled child.
entre nous, between us and the lamp-post.
embarras de richesses, too much of a good thing.
empressement, eager attentions.