scad

noun, plural (especially collectively) scad, (especially referring to two or more kinds or species) scads.

1. any carangid fish of the genus Decapterus, inhabiting tropical and subtropical shore waters.
2. any of several related carangid fishes, as of the genera Trachurus or Selar.

noun Usually scads.

1. Informal. a great number or quantity: scads of money.
2. Archaic. a piece of money; dollar.

noun plural scad or scads

1. any of various carangid fishes of the genus Trachurus, esp the horse mackerel

n.c.1600, Cornish name for a type of fish (also known as horse mackerel) abundant on the British coast; of uncertain origin, perhaps a variant of shad. OED compares Welsh ysgaden “herrings,” Norwegian dialectal skad, Swedish skädde “flounder.”