transitive. To make fast, confirm, settle.

To decide or determine in a specified way; to settle, arrange, or fix (a matter).

transitive. To make a judgement about; to adjudicate; to determine, decide, settle. Cf. terminate, v. 3.

with object a person: To establish in a firm position (in controversy, etc.); to ground in (a subject of instruction, etc.); also reflexive to take…

To render stable in faith, virtue, etc.

transitive. To determine; to decide; (also) to state definitely. Obsolete.

To determine, settle, appoint, arrange. Obsolete.

transitive. To establish, formulate definitely (a principle, rule); to prescribe (a course of action, limits, etc.).

To make (a thing) certain, definite, or precise, by determining exactly its limits, extent, amount, position, etc.; to decide, fix, settle, limit. Obs…

jocularly. To confirm.

To render tenable, obviate the objections to (an opinion); to vindicate from incredibility (an alleged fact).

transitive. To decide, settle, or conclude to be a fact; to come to a conclusion about; to ascertain or state as ascertained. Obsolete.

To determine, lay down as a thing ascertained.

To render determinate or definite.

To put beyond dispute, establish (a principle, fact) by authority or argument.

to set at rest: to satisfy, assure; to settle, decide finally. Frequently to set (a person's) mind (also †heart) at rest. Cf. at rest at phrases 5.

transitive. To make definite.

To make certain of (something); to render (something) conclusive. slang.