? Obs. [app. f. G. sonder separate.] A cirro-cumulus cloud.
1827. T. Forster, Encycl. Nat. Phenomena, 13. Cirrocumulus or Sondercloud is a congeries of small roundish little clouds in close horizontal apposition.
1844. H. Stephens, Bk. Farm, I. 246. Why the heap should be called the stacken-cloud,… the curled heap the sonder-cloud,… is by no means obvious.
1862. Chambers’s Encycl., III. 86/1.
