Definition of "bathroomette"

It is a kind of large cellar with a kitchenette and a bathroomette adjoining.

1943, Punch, volume 205, page 274

It had a queen bed above the cab, a little living room with a sofa and two chairs, a kitchenette, a bathroomette, a showerette, and two twin beds in a back bedroom.

2005, Timothy Kandler Beal, Roadside Religion

The flat, which he was ushered into by Terry, was no more than a flatlet, with kitchenette, bathroomette, and a bed-sitting-room with hideaway bed. It was rather ingeniously planned, given the restrictions […]

2006, Robert Barnard, Dying Flames