The Iranians are not going to just cower in the corner because we talk and act tough.
But if the Twilight series has taught us anything, it is this: Do not cower in the face of freakishness!
Camus did not cower from the depressing implications of his insight.
c.1300, probably from Middle Low German *kuren "lie in wait" (Modern German kauern), or similar Scandinavian words meaning "to squat" and "to doze" (e.g. Old Norse kura, Danish, Norwegian kure, Swedish kura). Thus unrelated to coward. Related: Cowered; cowering.