Etymology of ally
Webster's Revised Unabridged Dictionary: OE. alien, OF. alier, F. alier, fr. L. alligare, to bind to; ad, + ligare, to bind. Cf. Alligate Alloy Allay Ligament
What makes a good ally?
This question refers to social allies rather than states that support each other.
According to Everyday Feminism, there are ways to be an ally, and mistakes. https://everydayfeminism.com/2013/11/things-allies-need-to-know
10 Things Every ‘Ally’ Needs to Remember
There are lots of ways to be a great “ally” – and innumerable ways to be a terrible one. There are simple things you can keep in mind and do in order to be a better person “currently operating in solidarity with” the marginalized or oppressed.
1. Being an Ally is About Listening
2. Stop Thinking of ‘Ally’ as a Noun
3. ‘Ally’ is Not a Self-Proclaimed Identity
4. Allies Don’t Take Breaks
5. Allies Educate Themselves Constantly
6. You Can’t Be an Ally in Isolation
7. Allies Don’t Need to Be in the Spotlight
8. Allies Focus on Those Who Share Their Identity
9. When Criticized or Called Out, Allies Listen, Apologize, Act Accountably, and Act Differently Going Forward
10. Allies Never Monopolize the Emotional Energy
To expand on these points, see the above link.
Is it just human nature to be an ally?
What are the dangers, or advantages, of being an ally?
What are the ethical issues to think about when being an ally?