Persuasive, Persuasivness - Vine's Expository Dictionary of New Testament Words
Persuasive, Persuasivness[ A-1,Adjective,G3981, peithos ]
an adjective (akin to peitho), not found elsewhere, is translated persuasive" in 1 Corinthians 2:4, RV (AV, "enticing"); See ENTICE, B.
[ B-1,Noun,G4086, pithanologia ]
"persuasiveness of speech," is used in Colossians 2:4, RV. See ENTICE, B, Note.