Cider apple
Cider is made in several countries and can be made from any apples. Historically the flavours preferred and varieties used to produce cider have varied by region. Many of the most traditional apple varieties used for ciders come from or are derived from those from Devon, Somerset and Herefordshire in England, Normandy in France, and Asturias in Spain, and these areas are considered to have their own broad cider styles although the many exceptions make this more of a historic footnote. Normandy cider is usually naturally carbonated and clear: Asturian cider apple varieties are mainly 'sharps' or mild 'bittersweets', producing a mildly acidic cider which is customarily served by being poured from height into the glass to oxygenate it.
Ciderkin
Ciderkin, sometimes referred to as water-cider, is a kind of weak alcoholic cider traditionally drunk by children, and made by steeping the refuse apple pomace in water. 
Ciderkin is currently listed alongside Cheate bread and Butter on the "Bill of Fare" for the Plimoth Plantation 1627 Harvest Dinner with the Pilgrims. However, according to the Plimoth Plantation Food Historian, this is not true 17th century ciderkin; Plimoth uses the term to differentiate between modern pasteurized sweet cider, which is served to guests, and period hard cider. "Stagecoach and Tavern Days", written by Alice Morse Earle, describes a 16th-century New Hampshire settler proudly recounting "he made one barrel of cider, one barrel of water-cider, and one barrel of charming good drink" from his first apple crop of eight bushels. According to Earle: