imaginary city built in air, 1830, translating Aristophanes' Nephelokokkygia in "The Birds" (414 B.C.E.). Cloud-land "place above the earth or away from the practical things of life, dreamland, the realm of fancy" is attested from 1840.
Clothilde
clothing
Clotho
cloture
cloud
Cloud Cuckoo Land
cloud nine
cloud-burst
cloudless
cloudlet
cloudscape