What is to put forth effort to obtain anything; to strive; to exert one's self. [Obs.] Duke John of Brabant purchased greatly that the Earl of Flanders should have his daughter in marriage. Ld. Berners called?

purchase — To put forth effort to obtain anything; to strive; to exert one's self. [Obs.] Duke John of Brabant purchased greatly that the Earl of Flanders should have his daughter in marriage. Ld. Berners. (Webster's 1913.)