To lose heart or courage; to be daunted or fearful.
4
Of courage, faith, etc.: to slacken, to give way.
noun
1
Any of various small game birds of the genera Coturnix, Anurophasis or Perdicula in the Old World family Phasianidae or of the New World family Odontophoridae.
2
The meat from this bird eaten as food.
3
A prostitute, so called because the quail was thought to be a very amorous bird.