The term 'Scarborough Fair Herb' refers to two herbs commonly used in the traditional English folk song, Scarborough Fair. The two herbs are SAGE (4 letters) and THYME (5 letters). SAGE is an aromatic herb with a slightly bitter taste that is often used in cooking and medicinal purposes. THYME is a fragrant herb with a mild flavor that is used in many dishes and also has medicinal properties. Both herbs are widely used in traditional English cuisine.