Lastly, as this family was denominated from one of their ancestors being Constable or Castellan of the Castle of Carew, in Pembrokeshire, for carew doth not signify a plough in British, for ardar, aradr, arar, is a plough in Welsh, Cornish, and Armoric, and kaer, caer, is a castle or fortified place. Carew, caer-ew, care-eff, is he, his, or her, Castle, as ipie, ipea, ipeum. See Ffloyd. Caer-eau, British Saxon, is a castle or fortified place of water, referring perhaps to the medical or purgative waters there.
As Mr. Carew saith his family was denominated from one Carrow or Karrow that came into England with William the Conqueror, so I must tell you that there was in Cornwall and Devon, not long since, a genteel family surnamed Carrow (id est, deer) who gave for their armes, as appears from Nich. Upton’s Latin manuscript book of Heraldry, before printing was invented, now in my custody, dated 1444, in those words, “Monsieur Joh’is de Carrow, port d’or iii lyons passant sable,” which is now the arms of those gentlemen before-mentioned, named Carew. Care-w, after the English Cornish, is he, his, or her care, watchfulness, or circumspection.
In this parish or manor, as I take it, stands Intsworth, alias Inis-worth, synonymous words signifying an island of worth, price, or value, viz. a peninsular formed by rivers of water, which leaves between them an angled or three-cornered promontory of land, called in British inis, signifying the same as amnicus mediamnis in Latin. See Gluvias. This place, before the Norman Conquest, was the land of Condura and Cradock, Earls of Cornwall, by one of whose daughters or granddaughters, Agnes, it came by marriage to Reginald Fitz-Harry, base son of King Henry I. by Anne Corbet; who, in her right, long after William Earl of Cornwall, of the Norman race, forfeited the same to the King by attainder of treason, was made Earl thereof, from whose heirs it passed to the Dunstanvills and Valletorts; and by Valletort’s daughter Joan, the widow of Sir Alexander Oakston, Knt. who turned concubine to Richard Earl of Cornwall, King of the Romans, who had by her a sole daughter named Joan, married to Richard Champernowne, a second son of Sir ―――― Champernowne, of Clift Champernowne, in Devon, in whose posterity it remained till Henry VII.’s days, when, his issue male failing, his three daughters and heirs were married to Monk, Fortescue, and Trevillian, from some of whose heirs it came by purchase to Edward Nosworthy, Esquire, Member of Parliament for Saltash, son of Edward Nosworthy, merchant and shopkeeper in Truro, temp. Charles II. who married Hill of that place, as his son aforesaid did Maynard and Jennings. The arms of Nosworthy are (see St. Stephen’s by Saltash). The name Nos-worthy signifies a “night of worth,” price or value so called, for that the first propagater thereof was born by night, or was notable for some profitable fact done at that season. And John Nosworthy was steward of Exon 1521.