luna-, luni-, lun-, lunu-

(Latin: moon, light, shine)

apolune (s) (noun), apolunes (pl)
The point in the orbit of a spacecraft circling the moon when it is farthest from the moon's center.
circumlunar (adjective), more circumlunar, most circumlunar
1. A reference to revolving or rotating around the moon.
2. Characteristic of surrounding the moon.
cislunar (adjective), more cislunar, most cislunar
Relating to or referring to something that is situated between the earth and the moon.
demilune (s) (noun), demilunes (pl))
1. A half-moon or a crescent moon .
2. A crescent-shaped cell; such as, one of the serous cells of the body known as a submandibular salivary gland.
ex luna scientia (Latin)
Translation: "From the moon, knowledge."

The words, ex luna scientia were inscribed on the mission patch worn on the uniforms of the crew of Apollo 13.

The phrase was the motto of the moon mission and was derived from ex scientia tridens, the motto of Jim Lovell's Alma Mater, the United States Naval Academy.

Jim Lovell was a former NASA astronaut and a retired captain in the United States Navy, who was most famous as the commander of the Apollo 13 mission, which suffered a critical failure on the way to the moon, but it was brought back safely to earth with the skills of the crew and the mission control staff.

illunis (adjective) (not comparable)
Referring to a moonless night or being without any moonlight.
interlunar (adjective) (not comparable)
Pertaining to the period between the old and new moon during which the moon is not visible from the Earth.
interlunary (adjective) (not comparable)
Descriptive of a period or time when the moon can't be seen from this planet.
interlunation (s) (noun), interlunations (pl)
The period of time between the old and the new moon.
loonier (adjective), more
A reference to being crazier, more foolish, or sillier: Although the politician was making promises that were obviously impossible to achieve, he continued to make loonier claims that he would make his government more profitable for everyone.
looniest (adjective), (no comparatives)
Relating to being the craziest or most foolish: There are some people who are convinced that President Donald Trump is the looniest person in history with all of his flip-flopping statements and behaviors.
loony, looney, luny (s) (noun); loonies, looneys, luny
1. An offensive term that deliberately insults someone's intelligence and ability to act rationally: Someone has said that every family includes someone who's a little loony.
2. Anyone who behaves in an eccentric or thoughtless way.
3. A shortening, informal, and altered version of lunatic.
luna (s) (noun), lunas (pl)
1. A personified name of the moon.
2. When capitalized, Luna is the Roman goddess of the moon. The Greek equivalent is Selene.
The lunar lowlands (the dark-colored regions as seen from the earth).
lunacy (s) (noun), lunacies (pl)
1. The condition of being insane: A case of intermittent lunacy was formerly supposed to be brought about by the changes of the moon, but is now applied generally to any form of insanity or idiocy.
2. Legally, but thought to be obsolete, a mental unsoundness and interfered with civil rights or transactions. Lunacy was also thought to be a fit or an attack of of an unsound mind.

Lunacy is an offensive term for any psychiatric disorder that renders patients legally incompetent and requires them to be taken into care: The term lunacy was supposedly never used by physicians in medical or psychiatric contexts.
3. An unintelligent, inconsiderate, or misguided behavior, or an example of it: Lunacy is now considered to be a totally foolish and stupid act.

Etymologically related "light, shine, glow" word families: ethero-; fulg-; luco-; lumen-, lum-; lustr-; phengo-; pheno-; phospho-; photo-; scinti-, scintill-; splendo-.

A cross reference of word units that are related, directly or indirectly, to the: "moon": Calendar, Moon Facts; Chemical Element: selenium; Gods and Goddesses; Luna, the earth moon; menisc-; meno-; Planets in Motion; plano- seleno-.