Oregano

Oregano and Marjoram are the same plant. It's common to see recipes calling for either herb. The word Oregano comes from Greek. 

Medicinally Oregano is used for bronchitis and asthma as well as digestive disorders. 

Quick Pizza Sauce
1/4 cup tomato sauce
2 Tbsp garlic, minced
2 Tbsp onion, diced
4 mushrooms, diced 
2 tsp oregano
Saute in a skillet until hot.
Spread sauce on bread, cover with cheese.  
Toast in a toaster oven or broil in conventional oven.