since you have a similar question to the "guilt" q I just replied for you I'll just post the link so you can consult it for any further words you might be unsure about. http://dictionary.reference.com/

1) anger: "Etymology Old English anger, angre (affliction, anger) < Icelandic angr (affliction, sorrow); akin to Danish anger (regret), Swedish anger (regret), Old English ange (oppressed, sad), Latin angor (a strangling, anguish), angere (to strangle), Greek άγχω (to strangle), Sanskrit amhas (pain), and to (anguish, anxious, quinsy), and perhaps awe (ugly). The word seems to have originally meant "to choke", "squeeze"." "A strong feeling of displeasure, hostility or antagonism towards someone or something, usually combined with an urge to harm." "Synonyms resentment; wrath; rage; fury; passion; ire gall; choler; indignation; displeasure; vexation; grudge; spleen." Source: http://en.wiktionary.org/wiki/anger "Anger is an emotion, "subjectively experienced as an aroused state of antagonism toward someone or something perceived to be the source of an aversive event."" Source and further information: http://en.wikipedia.org/wiki/Anger 2) resentment: "a feeling of anger, indignation or extreme displeasure, especially one that results from a grievance, insult or slight" Source: http://en.wiktionary.org/wiki/resentment "Resentment is an emotion of anger felt as a result of a real or imagined wrong done. Etymologically from "ressentir", French re-, intensive prefix, and sentir "to feel"; from the latin "sentire". The English word has become synonymous with anger and bitterness. It can be an emotionally disturbing experience that is being felt again or relived in the mind. When the person feeling resentment is directing the emotion at himself it appears as remorse." Source and further information: http://en.wikipedia.org/wiki/Resentment