Both Uses of

animosity
in
1776, by McCullough

All were urgently needed, but they also compounded the threat of regional animosity and discord, which Washington still feared might tear the army and the country apart.†
p. 120.1 *

animosity = hostile feeling

On November 2, when Howe's army was still at White Plains, an American staff officer named William Demont (whom Mackenzie referred to as William Diamond), turned traitor, defecting to the British from Fort Washington and bringing with him copies he had made of plans of the fort and the placement of cannon, as well as accounts of the mounting discontent and animosity between the rebels from New England and those from the South.†
p. 238.2