Final answer:
Nat Turner's Rebellion is credited with helping to ingrain the paternalist ethos more deeply into the lives of southern slaveholders.
Step-by-step explanation:
The event that is credited with helping to ingrain the paternalist ethos more deeply into the lives of southern slaveholders is Nat Turner's Rebellion. The rebellion, which took place in Virginia in 1831, led to a heightened discussion over slavery in the state. The rebellion caused southern slaveholders to recommit to the institution of slavery and blame northerners for provoking enslaved people to rebel.