dedagum noun English. A bird, probably the short-crested blue monarch Scientific name. Hypothymis halenae. Example sentence: Subanen. Kiin dedagum, kaas iini piningalan nami dun, pu' su palasen, maitem, ma'niin sigbet kia dagum, sa' tugaun mu di tubig, melunawi kaitemen. English. As for the dedagum bird, the reason we call it that is because its color is dark, like the dagum weed, which when you crush in water, its darkness is blue. Generic. manukmanuk