Strong's G4482 · Greek

ῥέω

rheo · hreh'-o

a primary verb; for some tenses of which a prolonged form rheuo hryoo'-o is used to flow ("run"; as water)

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 22 ῥέω [in LXX chiefly for זוּב ;] to flow : Jo 7:38 (cf. παραρρέω ).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain