obligre.html - v. & adj.
--v.

tr.
1 (usu. in passive; foll. by to + infin.) bind (a person) legally or morally.
2 US commit (assets) as security.

--adj.

Biol. that has to be as described (obligate parasite).

obligator n. [L obligare obligat- (as OBLIGE)]

obligre.html - n.
1 the constraining power of a law, precept, duty, contract, etc.
2 a duty; a burdensome task.
3 a binding agreement, esp. one enforceable under legal penalty; a written contract or bond.
4 a a service or benefit (repay an obligation). b indebtedness for this (be under an obligation).

day of obligation Eccl. a day on which all are required to attend Mass or Communion. of obligation obligatory.

obligational adj. [ME f. OF f. L obligatio -onis (as OBLIGE)]

obligre.html - adj.
1 legally or morally binding.
2 compulsory and not merely permissive.
3 constituting an obligation.

obligatorily adv. [ME f. LL obligatorius (as OBLIGE)]

obligre.html - v.
1 tr. (foll. by to + infin.) constrain, compel.
2 tr. be binding on.
3 tr. a make indebted by conferring a favour. b (foll. by with, or by + verbal noun) gratify (oblige me by leaving). c perform a service for (often absol.: will you oblige?).
4 tr. (in passive; foll. by to) be indebted (am obliged to you for your help).
5 intr. colloq. (foll. by with) make a contribution of a specified kind (Doris obliged with a song).
6 tr. archaic or Law (foll. by to, or to + infin.) bind by oath, promise, contract, etc.

much obliged an expression of thanks.

obliger n. [ME f. OF obliger f. L obligare (as OB-, ligare bind)]

obligre.html - n.
Law a person to whom another is bound by contract or other legal procedure (cf. OBLIGOR).

obligre.html - adj.
courteous, accommodating; ready to do a service or kindness.

obligingly adv. obligingness n.