The story
From brink (“border, edge”) + -manship (suffix denoting expertise, involvement, or special status in an area).
First known use, by meaning
- from mid 1950s The pursuit of an advantage by appearing to be willing to take a matter to the brink (for example, by risking a dangerous policy) rather than to concede a point.
Etymology from Wiktionary, CC BY-SA 4.0.