bird in (one's) bosom

(redirected from bird in his bosom)

bird in (one's) bosom

obsolete An oath of faith, servitude, piety, or conscience that is kept guarded in one's heart, mind, and spirit. Truly, my lord, I am at your service and loyal to your name, and I shall guard the bird in my bosom till my last breath.
See also: bird, bosom