The Collaborative International Dictionary of English v.0.48:

Calamanco \Cal`a*man"co\ (k[a^]l`[.a]*m[a^][ng]"k[-o]), n. [LL.
   calamancus, calamacus; cf. camelaucum; a head covering made
   of camel's hair, NGr. kamelay`kion, and F. calmande a woolen
   stuff.]
   A glossy woolen stuff, plain, striped, or checked. "A gay
   calamanco waistcoat." --Tatler.
   [1913 Webster]