Grog
/ɡrɑːɡ/
Definition 1 of 2
Pro Tip 1/3Historical Origin
Originally, grog was a naval drink. Knowing this helps understand its traditional context. 
The naval tradition of drinking grog dates back to the 18th century.
Pro Tip 2/3Watered Down
Grog used to be rum diluted with water, often to make a limited supply last longer on ships. 
To prevent scurvy among sailors, citrus was sometimes added to their grog.
Pro Tip 3/3Naval Tradition
Understanding grog's naval tradition reveals why it's often associated with sailors. 
The pirate stories often mention grog as the sailors' favored drink.