Noah Webster's New International Dictionary of the English Language

1. (a.) Having the temper and disposition of a friend; disposed to promote the good of another; kind; favorable.

2. (a.) Appropriate to, or implying, friendship; befitting friends; amicable.

3. (a.) Not hostile; as, a friendly power or state.

4. (a.) Promoting the good of any person; favorable; propitious; serviceable; as, a friendly breeze or gale.

5. (adv.) In the manner of friends; amicably; like friends.