To give courage.
May their example nerve us to face the enemy.
To give strength; to supply energy or vigour.
The liquor nerved up several of the men after their icy march.
Vigorous, strong; courageous.
(in combination) Having nerves of a specified kind.
a strong-nerved hero
(often in combination) Having one or more principal veins, especially of a leaf.
The leaf was palmately nerved.