Scup

Shortened form of a Narragansett word like mishcùppaûog

. Another shortening of the same word yields the synonym paugie.

Dictionary.com

The full word was borrowed as scuppaug.

Full definition of scup

Noun

1. A fish, ''

• 1995, “sheepshead”, entry in Percy Russell, Anita Williams, The Nutrition and Health Dictionary, page 391,A saltwater fish, a cousin of porgies and scups. The sheepshead has large, broad incisor teeth, much like a sheep.
• 2006, Alice Jane Lippson, Robert L. Lippson, Life in the Chesapeake Bay, page 276,Scup, in the Bay also called porgy, maiden, and fairmaid, are rather plain-looking fish — dull silver with 12 to 15 indistinct vertical stripes, flecked with light blue on their sides.
• 2007, August 8, Brett Martin, First a Hook, Then Ink: An Artist’s Catch, On a lark, he took a small scup, or porgy, and a stamp pad and demonstrated how to make a print.

Dutch schop

Noun

1. (US, dialect) A swing.