Sanborn
An English surname often explained as “sand-born,” but more likely a later form of a place-name surname such as Sambourne or Stonbourne.
The #3,558 most common surname in the United States (2010 Census) — about 1 in every 30,798 Americans shares it.
Etymology
This surname has been explained in more than one way by older writers. Some treated it as a transparent compound meaning “sand-born,” but that is probably a folk explanation rather than the true origin. The stronger historical reading is that Sanborn is a reduced or altered form of an English place-name surname, especially one like Sambourne or Stonbourne, with the first element ultimately going back to an Old English place-name element.
History
The name appears in English records in forms such as Sanborn and Sanborne, and later crossed to North America. Nineteenth-century surname dictionaries often grouped it with local surnames, though they disagreed on the exact source place-name. In the United States it is now a well-established but relatively uncommon surname.
Origin
Regions
Variant spellings
Fun fact
Older reference books sometimes glossed the name playfully as “sand-born,” showing how easily surname forms could be reinterpreted once their place-name origin was forgotten.
From the historical record
“SAMWELL for Samuel, q.v. SANBORN I etymologically more correct SAN BURN J forms than Sambopne, q.v. SANCTON (Eng.) Bel. to Sancton (Yorks), 13th cent. Sancton, Domesday Santon, Santun, Santune [O.E. twK.enclosure, village: the first elemept of Sa«cto« seems to refer to the dedication of the church to 'All Saints' —…”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)