Luna is a Latin term meaning 

“moon,” derived from ancient Roman mythology where Luna was the goddess personifying the moon. It signifies light, femininity, and ethereal beauty, often associated with the crescent-shaped markings on the luna moth. Today, it is popular as a given name and commonly used for pets. 

Key meanings and associations:

• Origin: Derived from the Latin luna, it is also the word for “moon” in Spanish, Italian, and Romanian.
• Mythology: In Roman mythology, Luna was the goddess who drove her white chariot across the sky, often equated with the Greek goddess Selene.
• Symbolism: Represents luminescence, moonlight, and the night sky.
• Alchemy & Language: Historically, it referred to silver in alchemy. It is the root for words like “lunar” and “lunatic”.
• Modern Usage: A popular, short, and feminine name. 

Common Associations:

• Characters: Luna Lovegood from Harry Potter.
• Nature: Luna moth (named for crescent-shaped wing spots).
• Pop Culture: Sailor Moon (Princess Luna).