chaerefolium

Chervil comes from the Old English cerfille, from Latin chaerefolium, from Greek khairéphyllon — a compound of khaírein (to rejoice) and phýllon (leaf). The 'leaf of joy.' Why a mild, parsley-like herb received such an enthusiastic name is unclear. One theory suggests the name referred to the pleasant aroma released when the leaves were crushed. Another notes that chervil is one of the first herbs to appear in spring — the joy may have been seasonal.

The Romans used chervil medicinally and in cooking. Pliny mentions it. Columella, the Roman agricultural writer of the first century CE, included it in his garden recommendations. After the fall of Rome, chervil survived in monastery herb gardens across medieval Europe. Charlemagne ordered it planted in his Capitulare de Villis, the detailed estate management document of 812 CE that specified which plants every royal estate must grow.

French cuisine adopted chervil as one of its defining herbs. It is one of the four fines herbes — chervil, parsley, tarragon, and chives — the canonical fresh herb mixture of classical French cooking. Auguste Escoffier codified this combination in the early 1900s. Chervil appears in béarnaise sauce, in omelettes, and on spring vegetables. Its flavor is delicate — faintly anise, slightly peppery — and it wilts under heat, which means it is always added last.

Outside France, chervil is relatively obscure. Anglo-Saxon kitchens largely forgot it. American cooks rarely encounter it. The herb that Charlemagne required on every estate is now a specialty item in most supermarkets. The leaf of joy became the leaf of French fine dining and, for most of the English-speaking world, the leaf of 'what is that?'