Definition of powdyke in English:

powdyke

noun

historical
  • (The name of) any of three ancient dykes or embankments in Norfolk, raised to keep out fen water.

Origin

Middle English; earliest use found in Patent Roll, 21 Edward I. From a first element of unknown origin + dike.

Pronunciation

powdyke

/ˈpəʊdʌɪk/