Strong's 3954 (παῤῥησία)

bold (X -ly, -ness, -ness of speech), confidence, X freely, X openly, X plainly(-ness)

all out-spokenness, i.e. frankness, bluntness, publicity; by implication, assurance

from G3956 (πᾶς) and a derivative of G4483 (ῥέω);