henna . ( Del ár. Hisp. to the? ínna, and this of the ar. clás. (do ? inna' ). 1. f. shrub in the family of the Oleaceae, about two meters in height, shrub, with almost persistent leaves, opposite, ovate, smooth and glossy; Flowers small, white, fragrant, in Terminal clusters and fruit berries black, round, and the size of a pea. 2. f. flowers of this shrub. 3. f. dust that amount the leaves of the henna picked in the spring and then dried outdoors. It is used for dyeing. 4. f. azúmbar (? alismatácea plant). 5. f. rust or mildew. fact henna , or ground as a henna .. 1. locs. adjs. coloqs. Broken by some overwork, fatigue, blows, etc.