1. Waive Verb To give up something; to surrender
Some movie stars waive their chance to sign a prenuptial agreement, and then they are sorry when they end up getting divorced.

2. Illusory Adjective Misleading; deceptive
The contest was an illusory scam to make people think they won money when they really had the money stolen off of them.

3. Morose Adjective Sullen; gloomy
It is easy to be in a morose mood when your outdoor plans get cancelled because of the rain.

4. I lamented over the death of all of my pets.
Verb
To express sorrow; mourn
I lamented over the death of all of my pets.

5. Miasma Noun Stench; strong smell
The miasma from the chemical spill made us evacuate our house for a week.