How do you spell Disagree

Available Definitions:
1)  v. i. - To fail to accord; not to agree; to lack harmony; to differ; to be unlike; to be at variance.
2)  v. i. - To differ in opinion; to hold discordant views; to be at controversy; to quarrel.
3)  v. i. - To be unsuited; to have unfitness; as, medicine sometimes disagrees with the patient; food often disagrees with the stomach or the taste.