nabiy' (Hebrew #5030)
a prophet or (generally) inspired man
KJV usage: prophecy, that prophesy, prophet.
Pronounce: naw-bee'
naba' (Hebrew #5012)
to prophesy, i.e. speak (or sing) by inspiration (in prediction or simple discourse)
KJV usage: prophesy(-ing), make self a prophet.
Pronounce: naw-baw'
Origin: a primitive root