OT-PROPHET.filter - rwp Elaphria:

rwp@2Corinthians:1:17 @{Did I shew fickleness?} (\mti ara ti elaphrii?\). An indignant negative answer is called for by \mti\. The instrumental case of \elaphrii\ is regular after \echrsamn\ from \chraomai\, to use. \Elaphria\ is a late word for levity from the old adjective, \elaphros\, light, agile (2Corinthians:10:17; strkjv@Matthew:11:30|). Here only in N.T. {Purpose} (\bouleuomai\). Paul raises the question of fickleness about any of his plans. {Yea yea} (\Nai nai\) {--nay nay} (\ou ou\). See a similar repetition in strkjv@Matthew:5:37|. It is plain in strkjv@James:5:12| where "the yea" is "yea" and "the nay" is "nay." That seems to be Paul's meaning here, "that the Yea may be yea and the Nay may be nay."