kum·quat also cum·quat 
(kŭmkwŏt′)
(kŭmkwŏt′)n.
1. Any of several trees or shrubs of the genus Fortunella, having small, edible, orangelike fruit.
2. The fruit of any of these plants, having an acid pulp and a thin, edible rind.
[Cantonese gam1 gwat1; akin to Mandarin jīnjú : jīn, gold (from Middle Chinese kim) + jú, mandarin orange (from Middle Chinese kjyt; probably akin to Khmer kwic).]
kumquatFortunella sp.