Rage noun\ ˈrāj \

Definition of rage

1. violent and uncontrolled anger
a. a fit of violent wrath
b. archaic : insanity
2. violent action (as of wind or sea)
3. an intense feeling : passion
4. a fad pursued with intense enthusiasm

Rage (often called fury or frenzy) is a feeling of intense, violent, or growing anger. It is sometimes associated with the fight-or-flight response and is often activated in response to being in the presence of a threat. The phrase “thrown into a fit of rage” expresses the immediate nature of rage that occurs from extended exposure to a threat. If left unchecked, rage may lead to violence against the threat. Ultimately it is uncontrolled anger that is an increased stage of hostile response to a particularly egregious injury or injustice.

William James in 1890, proposed four basic emotions: fear, grief, love, and rage, based on bodily involvement. It has been deemed as a negative event-related emotion, meaning that it is typically caused by external factors.

Etymology
Old French raige, rage (French: rage), from Medieval Latin rabia, from Latin rabies (“anger fury”), akin to Sanskrit rabhas (violence). [3] The Vulgar Latin spelling of the word possesses many cognates when translated into many of the modern Romance languages, such as Spanish, Galician, Catalan, Portuguese, and modern Italian: rabia, rabia, ràbia, raiva, and rabbia respectively.