Definition of "Dorothy"

Pistol. Then to you, Mistress Dorothy; I will charge you. / Doll Tearsheet. Charge me! I scorn you, scurvy companion.

c. 1596–1599 (date written), William Shakespeare, “The Second Part of Henry the Fourth, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene iv]

"My name is Dorothy," said the girl, " and I am going to the Emerald City to ask the Great Oz to send me back to Kansas."

1900 May 17, L[yman] Frank Baum, chapter 3, in The Wonderful Wizard of Oz, Chicago, Ill., New York, N.Y.: Geo[rge] M. Hill Co.

Don't you think the world has gone steadily downhill ever since parents stopped naming their children Lucy and Dorothy and started naming them Samantha?

1990, Russell Baker, There's a Country in My Cellar, Morrow, page 418