transitive. To make strong or stronger (in material or immaterial sense); to strengthen, confirm; to fortify, to reinforce.

transitive. To give bodily strength to; to increase the physiological strength or operation of. Cf. strengthen, v. 4a.

transitive. To strengthen (a person or thing); to cause (something) to become hard or firm. Obsolete.

transitive. To strengthen, make sturdy or strong. Also intransitive: to grow strong. Obsolete.

To impart strength or vigour to (the body, its organs, or powers, †a plant); to give (a person, oneself) strength or endurance for some effort.

transitive. To endow with strength, strengthen.

transitive. Chiefly Medicine. To strengthen, invigorate, or restore (a person or thing). Also intransitive.

transitive. To strengthen, make strong.

transitive. To give bodily strength to; to increase the physiological strength or operation of.

transitive. To increase in force or degree, to intensify, augment.

transitive. To make masculine, give masculine characters to (a person or thing).

transitive. To give strength or vigour to (the arm, etc.). Also figurative.

transitive. To nerve, support, strengthen.