Antoinette
an-twah-NET
A French feminine form of Antonia meaning “inestimable” or “priceless.”
Meaning
Antoinette is the French feminine form of Antonia, ultimately tied to the old Roman name Antonius. In the cited 19th-century name books, it is glossed as meaning “inestimable,” a sense also reflected in the related form Antoine. The name became especially familiar in French usage, with Toinette noted as a common French contraction.
Origin
FrenchLatinfeminine
Fun fact
The excerpts note that Toinette is a common French nickname for Antoinette, especially in the tradition of Marie Antoinette.
Confidence: mixed. Sources: History of Christian Names, Girls' Names and Name-Day and Birthday Book.