a town of Hertfordshire in England, in a hilly country, upon a small river called the Cade, and 20 miles north-west of London. It was, in the time of the Saxons, called by the name of Henhamted, or Hean-Hemfied, i.e. High-Hemfied; in William the Conqueror's time, by the name of Hemelamitede. Henry VIII. incorporated this village by the name of a bailiff; and he empowered the inhabitants to have a common seal, and a pye-powder court during its market and fairs. It has been reckoned one of the greatest markets for wheat in this county, if not in England, 20,000l. a-week being often returned in it only for meal. Eleven pair of mills stand within four miles of the place, which produce a great trade.