Caro
A surname with several possible origins, most often linked to Romance-language words meaning “dear” or “beloved,” and sometimes to a place-name.
The #3,545 most common surname in the United States (2010 Census) — about 1 in every 30,678 Americans shares it.
Etymology
The surname Caro is not straightforwardly single-origin. In Romance-language usage, it can reflect the Latin carus, meaning “dear,” “beloved,” or “precious,” which could have produced a nickname or personal-name based surname. Some historical sources also connect similar forms with Cornish place-names, and others compare them with Celtic words for “deer,” but those explanations are less secure and may apply to different surnames or local forms.
History
Caro is found in several European naming traditions, which makes its history mixed rather than neatly one-line. In Iberian and Italian contexts it may have arisen as a nickname surname from the adjective “dear” or from given names built on Carus; in English records it may also appear in immigrant families. Because the spelling is short and widely compatible with multiple languages, it can represent independent surnames that later converged in form.
Origin
Regions
Variant spellings
Fun fact
In Latin, carus was a common affectionate word meaning “dear,” which helped make forms like Caro easy to adopt as personal names and surnames.
From the historical record
“MaiyHide: St.G«>.Chap.Hayra>r,p.6g. 1768. _ Airor Lettourgeon and Caro- line DoaxuiDt : St. Geo. Hun. Sq. I. 17S. 1773. — Ihibc LenujceOD and Ann Wran: ibid.p.ajj.”
— A Dictionary of English and Welsh Surnames, with special American instances