Severity (noun)

1. The state or quality of being serious or strict.
2. The state or quality of being harsh or severe.

Origin:

Late middle english: from old french severeté, from latin severitas, from severus "stern, strict".

Examples:

1. The severity of the punishment was a warning to others.
2. The severity of the situation was not immediately apparent.
3. The severity of the storm caused widespread damage.
4. The severity of the illness was a concern for everyone.
5. The severity of the conditions was a challenge for the rescuers.