DISSENSION
discord, dissension
(noun) disagreement among those expected to cooperate
disagreement, dissension, dissonance
(noun) a conflict of people’s opinions or actions or characters
Source: WordNet® 3.1
Etymology
Noun
dissension (countable and uncountable, plural dissensions)
An act of expressing dissent, especially spoken.
Strong disagreement; a contention or quarrel; discord.
Source: Wiktionary
Dis*sen"sion, n. Etym: [L. dissensio: cf. F. dissension. See
Dissent.]
Definition: Disagreement in opinion, usually of a violent character,
producing warm debates or angry words; contention in words; partisan
and contentious divisions; breach of friendship and union; strife;
discord; quarrel.
Paul and Barnabas had no small dissension and disputation with them.
Acts xv. 2.
Debates, dissension, uproars are thy joy. Dryden.
A seditious person and raiser-up of dissension among the people.
Robynson (More's Utopia).
Source: Webster’s Unabridged Dictionary 1913 Edition