ressentiment

kauna puhekieltä (l). (defdate)
puhekieltä A sense of resentment arising from suppressed feelings of envy and hatred, often leading to a frustrated sense of inferiority that may lead to various social repercussions. (defdate)
1973, (w), “Nietzsche: The Revaluation of Values” in Nietzsche: A Collection of Critical Essays, edited by (w), (w): w:Doubleday (publisher)|Anchor Books, ISBN 0385033443, page 157:

When the weak call the strong evil the move is not merely defensive; it is also an expression of that peculiar malice which Nietzsche referred to as ressentiment. Those who cultivate humility and the other propitiatory virtues to cloak their weakness nourish an envious resentment against those stronger than themselves.

If his attack on Christian morality and on other moralities is going to be worth anything he has got to be right about the effect of teaching pity and justice — that it merely hides the ressentiment of the weak while it does injury to the strong.

Historians such as Liah Greenfield and Daniel Chirot have attributed the major wars and genocides in the early decades of the 20th century to ressentiment in Germany and Russia.