stewardship

noun

1. (countable, uncountable)The rank or office of a steward.
2. (countable, uncountable)The act of caring for or improving with time.

   “antimicrobial stewardship”

   “stewardship of natural resouces”

   “Foresters believe in stewardship of the land.”

   “In selecting Bran Stark, the lords of Westeros are choosing to value these stories and memories above whatever other qualities might make a good ruler, and more specifically, put an end to the caprices of heritage that have allowed bloodlines to wreak havoc on good stewardship of these kingdoms.”