This word has nothing to do with picture captions or captivity or even actions of pea brained captains in the military (although that seems logical). The word derives from Latin captiosus, meaning deceitful, sophistical (related to sophism).
Word of the Day
"Captious" - adjective [$10]
Captious means 1. given to finding fault or raising petty objections; 2. intended to entrap or confuse; deceitful.
Sentence: [from Erasmus in Praise of Folly, Great Books Edition, pg 8 referring to Stoic philosophers] "... seeing they're so captious and far keener-eyed to pick out their friends' faults than the eagle ..."