strengthen

strengthen is a   Verb

Definition:

[1] To make strong or stronger; to add strength to; as, to strengthen a limb, a bridge, an army; to strengthen an obligation; to strengthen authority. Let noble Warwick, Cobham, and the rest, . . . With powerful policy strengthen themselves. Shak.

[2] To animate; to encourage; to fix in resolution. Charge Joshua, and encourage him, and strengthen him. Deut. iii. 28.

Synonyms: