kitty · noun1
From kitt(en) + -y (diminutive suffix). Compare Dutch katje (“kitty”). Etymology 1 sense 2 (“vulva and/or vagina”) is probably modelled after the use of pussy to refer to the body part, from the appearance of an unshaven vulva.
kitty · noun2
Origin uncertain; etymology 2 sense 2 (relating to card games) is possibly from kit (“collection of items”) + -y (diminutive suffix).
kitty · noun3
Origin uncertain, possibly a clipping of kid(cote) (“lockup, prison”) (UK, dialectal, obsolete) + -y (diminutive suffix).
kitty · noun4
From Kitty (“diminutive of the female given name Katherine”).
kitty · noun5
Clipping of kitt(iwake) + -y (diminutive suffix).
Kitty · proper noun6
Clipping of Katherine and related names + -y (diminutive suffix).
Kitty · proper noun7
From kitty.
Etymology from Wiktionary, CC BY-SA 4.0.