There isn't a base word.
The base word of jealousy is "jealous."
Invidia is the latin word meaning jealousy
Yes, the word 'jealousy' is an abstract noun, a word for an emotion.
You have a bad character trait of jealousy.
Here are some sentences.Don't let jealousy ruin your friendship.His jealousy made her leave him.
zelos
jealousy
WIeREd QUeSTioN LoLz j/K jeAlOuSy iS iN ALl rElAtiOnSHiPS.
Jealousy is like a green eyed monster.
Envy Is A 4-Letter Word
Her jealousy for her sister began to boil.Her jealously was not attractive.Jealousy will only lead into despair.
Jealousy
It is a Spanish term for jealousy