obligate

v. t. [ imp. & p. p. Obligated p. pr. & vb. n. Obligating. ] [ L. obligatus, p. p. of obligare. See Oblige. ] 1. To bring or place under obligation, moral or legal; to hold by a constraining motive. “Obligated by a sense of duty.” Proudfit. [ 1913 Webster ]

That's your true plan -- to obligate
The present ministers of state. Churchill. [ 1913 Webster ]

2. To bind or firmly hold to an act; to compel; to constrain; to bind to any act of duty or courtesy by a formal pledge. [ 1913 Webster ]

That they may not incline or be obligated to any vile or lowly occupations. Landor. [ 1913 Webster ]