"soft white or pale blue-gray color," 1877, French, literally "moonlight," also used as "color of moonlight." See clear (adj.) + luna. Debussy's famous passage of that name (1890) was inspired by Verlaine's poem (1869).
cladistic
clafoutis
claim
claimant
clairaudience
clair-de-lune
Claire
clairvoyance
clairvoyant
clam
clambake