Merriam-Webster Collegiate Dictionary - cassia

 noun  Etymology: Middle English, from Old English, from Latin, from Greek kassia, of Semitic origin; akin to Hebrew qe?i‘ah ~  Date: before 12th century  1. a dried coarse cinnamon bark (as from Cinnamomum ~)  2. any of a genus (Cassia) of leguminous herbs, shrubs, and trees of warm regions CASSIMERE  noun  Etymology: obsolete Cassimere (Kashmir)  Date: 1774 a closely woven smooth twilled usually wool fabric (as for suits)