nahar (Hebrew #5104)
a stream (including the sea; expec. the Nile, Euphrates, etc.); figuratively, prosperity
KJV usage: flood, river.
Pronounce: naw-hawr'
'Aram (Hebrew #763)
Aram of (the) two rivers (Euphrates and Tigris) or Mesopotamia
KJV usage: Aham-naharaim, Mesopotamia.
Pronounce: Naharayim
Origin: from 758 and the dual of 5104