ῥακά (rhakárhak-ah'aramaic transliterated wordfool)
[Grk] ῥακά, ῥαχά LN: 32.61 GK: G4819, G4828 Hebrew: רֵיק
Derivation: of Chaldee origin (compare רֵיק);
Strong's: O empty one, i.e. thou worthless (as a term of utter vilification)
KJV: --Raca.
See: רֵיק