loz·enge 
(lŏzĭnj)
(lŏzĭnj)n.
1. A small, medicated candy intended to be dissolved slowly in the mouth to lubricate and soothe irritated tissues of the throat.
2.
a. A four-sided planar figure with a diamondlike shape; a rhombus that is not a square.
b. Something having this shape, especially a heraldic device.
[Middle English, rhombus, from Old French losenge, perhaps akin to Provençal lausa, flagstone, roofing slate (from a source akin to Latin lausiae, stone chips, perhaps of Celtic origin ) or from Arabic lawzīnaj, confection made from almonds (from Middle Persian lawzēnak : lawz- ultimately from early Aramaic *lawz-, almond; see lwz in the Appendix of Semitic roots + Middle Persian -ēnak, n. suffix).]