This unusual and interesting name comes from an English nickname for someone who habitually wore blue clothes or for someone with blue eyes. The derivation for both is from the Old French "bleuet", a diminutive of "bleu", blue, which in Middle English became "bluet", meaning blue wollen cloth, or "bleut", the cornflower. It was a common practice to create a surname from a nickname in medieval England. The name can be found spelt various ways in the modern idiom, ranging from "Blewitt" and "Blewett" to "Blonet" and "Bluett". One, Jane Blewitt married Charles Simes on the 3rd February, 1791, in Bath Somerset. The first recorded spelling of the family name is shown to be that of Ralph Blouet. which was dated 1086, in the Domesday Book (Hampshire). during the reign of King William 1, known as the Conqueror, 1066 - 1087. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.