A diminutive of the female given name Catherine or any of its variant spellings.
The pixels’ use in a taxpayer context resulted in the “reckless” sharing of legally protected data that could put taxpayers at risk, according to the report by Warren and her Democratic colleagues Sens. Ron Wyden; Richard Blumenthal; Tammy Duckworth; and Sheldon Whitehouse; Sen. Bernie Sanders, an independent who caucuses with Democrats; and Democratic Rep. Katie Porter. 2023 July 12, Brian Fung, “Tax prep companies shared private taxpayer data with Google and Meta for years, congressional probe finds”, in CNN:
There is one Emily, one Charlotte, no Catherine, but two Kates, and innumerable Katies, which seems to be the latest form that Catherine has taken—Catherine, Kate, Katie. 1890 August 8, “Girls’ Names Change. The Decline of Susan, Mary, Jane and All the Old Favorites.”, in Benj[amin] H. Sincell, editor, The Republican, volume 14, number 25, Oakland, Md., →ISSN, →OCLC, page [3], column 3:
And "Mable"'s a name that ever sounds sweetly / And charms and enchants a mortal completely / While "Katie" suggests brown eyes and brown tresses / Created for love and lover's caresses. 1892 Walter Malone, Narcissus: and Other Poems, J.B.Lippincott Company 1892, page 133 ("Mary")
(alt-of, alternative, with the) Alternative spelling of Katy (“the Missouri–Kansas–Texas (MKT) Railroad”).