Why Would Paul Use a Rare Word?

" authority of our men and Paul," is basically the main word that she's throughout. Rare words usually indicate unusual circumstances, right? So you have to ask yourself not only what the word means because we're not really sure, but why would Paul use a rare word?" "I lean in favor of scholars like Cindy Westfall who say it's actually not women wanting equal power with men, but women actually wanting to usurp authority or domineer over men."