dekopon/ˈdɛkəʊpɒn/EtymologyBorrowed from Japanese デコポン (dekopon), from でこ (凸, deko, “uneven”) + ポンカン (ponkan, “a kind of tangerine”).dekopon means A large, sweet hybrid citrus fruit, made by crossing a kiyomi and a ponkan. Lexicurio rates it Rare gem — a strength score of 83 out of 100.nounA large, sweet hybrid citrus fruit, made by crossing a kiyomi and a ponkan.