Plain (Adverb), Plainly, Plainness
New TestamentVine's Expository Dictionary of Biblical Words
Definition
1orthosG3723
"rightly" (from orthos, "straight"), is translated "plain," in Mar 7:35, of restored speech. See RIGHTLY.
2parrhesiaG3954
"boldness," is used adverbially in its dative case and rendered "plainly" in Joh 10:24, Joh 11:14, Joh 16:25, Joh 16:29 (with en, lit., "in plainness"). See BOLD, B, where see also "plainness of speech," 2Co 3:12, RV.