D defs.my
Entry 2 senses Webster, 1913

Obligate

/ŏʹblĭ-gāt'/ · Ob·li·gate · IPA /ˈɒb.lɪˌɡeɪt/
01 v. t. To bring or place under obligation, moral or legal; to hold by a constraining motive.
imp. & p. p. Obligated; p. pr. & vb. n. Obligating
  1. 1.
    To bring or place under obligation, moral or legal; to hold by a constraining motive.
    “That's your true plan -- to obligate The present ministers of state.” — Churchill.
  2. 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.
    “That they may not incline or be obligated to any vile or lowly occupations.” Landor.