grampus
noun
gram·pus ˈgram-pəs 
1
a
: risso's dolphin
b
: any of various other small cetaceans (such as the killer whale or pilot whale)
2
: the giant whip scorpion (Mastigoproctus giganteus) of the southern U.S.
Example Sentences
Recent Examples on the Web The killer whales are called aaxlu, tukxukuak, agliuk, mesungesak, polossatik, skana, keet, feared one, grampus, blackfish, orca, big-fin, fat-chopper. Whale killer. 
Nancy Lord, Anchorage Daily News, 16 Nov. 2019
Nancy Lord, Anchorage Daily News, 16 Nov. 2019 Word History
Etymology
alteration of Middle English graspey, grapay, from Anglo-French graspeis, from gras fat (from Latin crassus) + peis fish, from Latin piscis — more at crass, fish
First Known Use
circa 1529, in the meaning defined at sense 1b