Meaning

noun any of various trees or shrubs of the genus Cassia having pinnately compound leaves and usually yellow flowers followed by long seedpods

noun some genus Cassia species often classified as members of the genus Senna or genus Chamaecrista

noun Chinese tree with aromatic bark; yields a less desirable cinnamon than Ceylon cinnamon

originFrom Latin cassia (“cinnamon”), from Ancient Greek κασσία, κασία, κάσια (kassía, kasía, kásia), from Hebrew קְצִיעָה (qəṣīʿā), from Aramaic קְצִיעֲתָא (qəṣīʿătā), from קְצַע (qṣaʿ, “to cut off”). Compare Kezia.

Etymology from Wiktionary, CC BY-SA 3.0