Definition of "Sophronia"

After casting about for some time for a name which should be worthy of her, he decided in favour of Sophronia Sphynx, as being euphonious and genteel, and furthermore indicative of mystery.

1840 April – 1841 November, Charles Dickens, “Chapter the Last”, in The Old Curiosity Shop. A Tale. […], volume II, London: Chapman and Hall, […], published 1841, page 220

Crampton. Your name is Sophronia, girl: you were called after your aunt Sophronia, my sister: she gave you your first Bible with your name written in it.

1898, George Bernard Shaw, You Never Can Tell, act II