The story
Coined by William Shakespeare in 1603 in Hamlet, act 1, scene 4: : But to my mind, though I am native here : And to the manner born, it is a custom : More honored in the breach than the observance.
Etymology from Wiktionary, CC BY-SA 4.0.
to the manner born
Today it means: Familiar or adapted as if from birth with a specified custom, behavior, accouterment, etc.; naturally suited to it. Full definition →