Morale vs. Moral vs. Morality

Morale
Morale is the amount of confidence you have when you are in a difficult or dangerous situation:

- Many pilots are suffering from low morale.
- This win has been a great morale booster.
- The morale of the men was good.

Note the following points:

1- low/high morale
2- Boost, improve, raise, build morale
3- Keep up/maintain morale

- During the hard times of the war, they tried to keep morale up.
- After her consecutive failures, he could maintain her morale.

Moral
Used as an adjective ,count noun and plural noun.
When it is used as an adjective, it has two definitions:

1- Relating to the standards of good or bad behavior,fairness,honesty, and etc which each person believes in rather than to laws:

- Parents must give their children moral guidance.
- The issue raises a moral dilemma.
- I have noticed a fall in moral standards.
- The moral is clear, you must never marry for money.
- Moral judgment/moral obligation

2- Behaving in ways considered by most people to be correct and honest :

- He's a very moral woman.
- Stop being so moral.

3- Principles or behaviors:

- We agreed that the business morals are noways very low.
- They have no morals.
- There can be no doubt about the excellence of his morals.

Morality
Morality is the idea that some forms of behavior are right and the others are bad:

- Punishment always involves the idea of morality.
- The decline in standards of morality.
- They argued for a new morality based on self-sacrifice and honesty.

Refferences

- Colins Cobuild - Lexicon dictionary
- Cambridge dictionary
- Longman dictionary