From French calèche.

• Rhymes: -æʃ

calash (plural calashes)

1. (historical) Alternative form of calèche (“type of carriage with low wheels”).
2. (now historical) A silk and whalebone hood worn by ladies to shade the face.
   • 1828, JT Smith, Nollekens and His Times, Century Hutchinson, published 1986, page 242:

     Mrs. Lobb, an elderly lady, in a green calash, from the sign of the ‘Fan’, in Dyot-street, St. Giles's, was announced by Kit Finney, the mason's son, as wishing to see Mr. Nollekens.

• Schaal