Poway Mouth 1539 RMS iii no. 2028 [‘the Pool to Powie (Burn) Mouth’ (lie Pule ad Poway Mouth); see FPC Intro., Fishings]
Powie Burn 1855 OS 6 inch 1st edn
Sc pow + suffix
Sc pow is defined as ‘a slow-moving stream which meanders through flat, heavy land, especially bordering Tay, Forth and Solway’ (SND). I assume that the suffix is adjectival. It rises in Leuchars, then forms the march between LEU and FPC as far as the sea.
This place-name appeared in printed volume 4