Kitty vs Darcy - What's the difference?

As a proper noun kitty

is a diminutive of katherine and related female given names.

a (non si) unit of area used in measuring the permeability of porous solids such as powders.

* kittie (young cat)

(kitties)

A kitten or young cat.

(childish) A pet name for a cat.

A money pool, as for a card game, or for shared expenses.

(poker, slang) In a home game, a small, specified amount taken from each pot to pay the host's expenses.

(slang) Female genitals. (less vulgar)

(card games) A set of additional cards dealt face down in some games.

* (money pool) pot

* (cat)

(s)

from a place d'Arcy in Northern France.

, transferred from the surname.

of mostly American usage since the mid-twentieth century.