What is the meaning of Oblige?

To constrain someone by force or by social, moral or legal means.

To do (someone) a service or favour (hence, originally, creating an obligation).

To be indebted to someone.

inflection of obliger:

  1. first/third-person singular present indicative/subjunctive
  2. second-person singular imperative

first/third-person singular present indicative/subjunctive

second-person singular imperative

third-person singular/plural present subjunctive of obliga

Source: wiktionary.org