The inevitable lack of enmity between sisters means their rivalry lacks the vital edge that made the eras of Martina Navratilova and Chris Evert and Steffi Graf and Monica Seles so compelling.
On the ice, old enmities mean little.
The familial enmity meant that the Earl of Salisbury, a Neville, used his position as lord of Penrith to antagonise the Cliffords; it is likely that Brougham Castle was kept garrisoned due to its proximity to Penrith.
Nine hundred years of enmity, he says, mean that "If they've got the bomb, then we must have the bomb".
The US has assembled a coalition to fight IS, but longstanding enmities and an already complex situation in the Middle East mean forming sustainable alliances will be far from straightforward.
European integration overcame the historic enmity between France and Germany.
In the short term, this would mean a fiscal adjustment of around 2% of GDP a sizable impact on an economy as weak as America's.Given this, and general level of partisan enmity in Washington, it has been frustrating to watch Congress spend its valuable lame duck session debating earmark reform.
The attacks could threaten recent American efforts to reduce the overall enmity between Pakistan and India, which were meant to enable Pakistan to focus more military resources against the rising threat of the Taliban in its lawless tribal areas.
"The Muslim Brotherhood does not view the state as an infidel or a rebound state which means the Brotherhood takes no stance of enmity or confrontation with the state, but — rather — acts as an adviser or a guider.
They seemed to show an affinity for Nintendo, or rather enmity towards Sony, and suggested they meant no harm.
