oblige

oblige
v. trans.
Do a favour to: P. and V. χᾰρίζεσθαι (dat.), ὑ̆πουργεῖν (dat.).
To oblige, as a favour: P. and V. πρὸς χά̆ρῐν.
Oblige with a loan: P. εὐπορεῖν (dat. of person, acc. of money).
Compel: P. and V. ἀ̆ναγκάζειν ; compel.
Be obliged to, owe thanks to: P. and V. χά̆ρῐν ἔχειν (dat.), χά̆ρῐν ὀφείλειν (dat.).
Be compelled to: P. and V. ἀ̆ναγκάζεσθαι (infin.), V. ὀφείλειν (infin.) (rare P.).
I am obliged to: use P. and V. δεῖ με (infin.), χρή με (infin.).

OBLIGE

To compel aliquem vi cogere; [Vid: COMPEL].

To bind (by a stipulation duly favor etc) alligare obligare obstringere devincire. The law obliges anyone lex tenet aliquem. To be obliged to the observance of a treaty foedere alligatum or illigatum esse. To oblige a man by an oath aliquem sacramento adigere. To oblige one’s self to do a thing se obligare alicui rei (or with ut); se obstringere in aliquid (by oath sacramento; to a crime in scelus). I am obliged to do this hoc meum est.

To confer a favor upon beneficium in aliquem conferre: to oblige one greatly gratissimum pergratum percommode alicui facere: you cannot oblige me more than by etc. hoc mihi gratius facere nihil potes; nihil est quod gratius mihi facere possis: you will oblige me greatly by (or if you etc.) gratum (gratissimum) mihi feceris si etc.; magnum beneficium mihi dederis si etc.: I am very much obliged to you gratissimum illud mihi fecisti; magnum in me contulisti beneficium: to be greatly obliged to one multum debere alicui; multa beneficia ab illo in me profecta collata sunt (after Cic.): readiness to oblige officium; officiosa voluntas; gratificandi liberalis voluntas; comitas (courteous and kind behavior toward inferiors): to show all readiness to oblige anybody omni officiorum genexe aliquem prosequi; summa alicui studia impertire.

oblige:

I. To bind by some obligation: oblĭgo, obstringo, etc.: v. TO BIND (II.).

II. To constrain, force: cōgo, 3: v. TO COMPEL.

III. To render indebted; do a favour to any one:

1. expr. by grātum, gratissimum făcio, 3 (with dat.): you will very greatly o. us, gratissimum nobis feceris (foll. by si with fut. perf.), Cic. Sen. 2, 6: so, pergratum mihi feceris, id. Am. 4, 16: and, mihi vero pergratum erit, I shall be very much o.d: so, erunt mihi gratissima, id. Fam. 13, 48.

2. oblĭgo, 1 (to lay under an obligation): you will o. me, you will o. my friend Calvisius, obligabis me, obligabis Calvisium nostrum, Plin. Ep. 4, 4, 3. (N.B.--Not exactly in this sense in Cic.: v. OBLIGATION, III.)

3. commŏdo, 1 (to o. by lending or giving: with dat. of person): in whatever way you can o. a person, without loss to yourself, quicquid sine detrimento possit commodari, Cic. Off. 1, 16, 51: so, id. Fam. 13, 35, ut omnibus rebus, quod sine molestia tua facere possis, ei commodes (serve, oblige him): oft. = to o. with the loan of anything: v. TO LEND.

4. expr. by beneficium collocare apud aliquem; b. conferre in aliquem, etc.: v. FAVOUR.

5. grātĭfĭcor, 1 (to do what is agreeable to any one): Cic.: Liv.: v. TO GRATIFY. See also TO COMPLY WITH. Phr.: I am much o.d to you for what you did about ..., de ... multum te amo, Cic. Att. 7, 2, 7: so with in and abl., id. Fam. 13, 62 (in Attilii negotio te amavi): or foll. by rel. clause, te multum amamus, quod, etc., id. Att. 1, 3, 2.