Sweat
An English surname that may be a nickname or a shortened form of older names such as Sweet or Sweatman.
The #3,856 most common surname in the United States (2010 Census) — about 1 in every 33,581 Americans shares it.
Etymology
The surname Sweat is not completely secure in origin. Historical sources link it either to Sweet/Sweeten-like forms or to the older personal name Sweatman/Swetman, which may itself contain the Old English element swith, meaning 'strong' or 'powerful.' In some cases, Sweat may also reflect a phonetic or spelling variant that developed from Sweet or related names rather than a separate root.
History
19th-century surname writers record Sweat alongside forms like Sweet, Suett, Swett, Sweatman, and Swetman, showing that the spelling was fluid. One older line of interpretation treats it as connected with a pre-Domesday personal name Suetman or Suetmannus, while another connects it with 'Sweet' or similar forms. The surname is uncommon in modern America, but it survives in English-language records and variant spellings.
Origin
Regions
Variant spellings
Fun fact
A 19th-century source notes that Sweatman may go back to a very old name, Suetmannus, showing how a seemingly modern-looking surname can have deep medieval roots.
From the historical record
“SWEARING. Formed like Winning, q. v. SWEAT. Same as Suet. SWEATING, SWETTING. Same as Sweeten, q. v. SWEATMAN. The same as Sweetman, and an ancient name Swetman, and the prae-Domesday name Suetman or Suetmannus. The name may mean strong or powerful man. The A. S. swith, wytli is strong, powerful, great ; Fries…”
— Ludus Patronymicus; or, the etymology of curious surnames