gain strength

The doctor told them that Aunt Rody might be helpless in bed for months; she might gain strength and sit in her chair again.

I stood some time in the companion-way before I could gain strength to move forward.

We went to the nearest house and asked permission to rest till I should gain strength to return to the city.

Her voice broke, but she shot a swift glance at the prisoner and seemed to gain strength.

It is necessary I should gain strength and courage before I proceed further.