oblige
Cross references: 1. force oblige \*-'bli-j\ vb [ME obligen, fr. OF obliger, fr. L obligare, lit., to bind to], fr. ob- towards + ligare to bind - more at LIGATURE 1: FORCE, COMPEL 2a: to bind by a favor or service 2b: to do a favor for : to do something as a favor - oblig.er n