The Solar System and names for senshi
Names' meanings and roots:
The names Naoko san selected for the Sailor senshi are not random, specially their family names. Those are given for the planet they belong too. So Usagi gets her family name, Tsukino, for Tsuki, the moon. Some are not taken strictely from the exact name, but the kanji or the Japanese root. For example, Jupiter's Japanese name is Mokusei, wood star and another way to say or writte moku is ki. So Makoto's family name is Kino.
The only exception is Mina, since her name was chosen before Naoko created Sailor Moon.

Planets' names:
The first planets (minus Earth), together with the moon and the sun are old the seven "sei" (solar system bodies including the Sun, Moon, Mars, Mercury, Jupiter, Venus, and Saturn). The rest were not discovered until later, so their names' roots are different.
Except from the Sun and the Moon, the sei's names are formed by an element: fire, water, wood, soil, gold; and the word sei (star).

Name Meaning Planet name Explanation
Mizuno Ami mizu= water, no = of, a = center, mi = beautiful
Beautiful center of water
Suisei
(water star).
Another way to say sui is mizu.
Aino Minako ai= love, no = of, mi = beautiful, na = little, ko = child
Beautiful little child of love
Kinsei
(gold star)
Mina's name has more relation to the Goddess she represents, Venus, than to her planet.
Tsukino Usagi tsuki = moon, no = of, usagi = rabbit
Rabbit on the moon
Tsuki In Japan as well as in Mexico, the shadows of the Moon are thought to be a rabbit. In the Japanese legend, the bunny is pounding mochi, a traditional Japanese food.
Tsukino Chibiusa tsuki= moon, no = of, chibi = small, usa = bunny
Little bunny of the moon
Tsuki Her full name is actually Usagi Small Lady Serenity, Chibiusa is just her nickname.
Hino Rei hi= fire, no = of, rei = spirit
Spirit of fire
Kasei
(fire star)

Another way to say ka is hi.
Kino Makoto ki= wood, no = of, makoto = truth; faith; fidelity; sincerity; trust; confidence; reliance; devotion
faith or wisdom of wood
Mokusei
(wood star)
The other way to say ki is moku.
Tomoe Hotaru tomoe=huge comma design to = soil, moe = sprouting, hotaru = firefly
firefly sprouting from the soil
Dosei
(soil star).
The first kanji of Tomoe is the same kanji as in do of Dosei.

The names for the next three planets, Uranus, Neptune and Pluto are given because of the Greek gods they were named after by Occident. They are composed by the word that represents the realm they rule (Kai, sea, for Neptune), the word oh (ruler) and last, sei, as in the rest. Here Naoko just took out the sei to give Setsuna, Haruka and Michiru their last name.
Name Meaning Planet name
Meioh Setsuna mei= dark, command; decree; life; destiny
oh = king, setsuna = moment; instant; juncture
Dark moment king
Pluto is called Meiousei
(dark king star)
Kaioh Michiru kai= ocean, oh = is a subfix that indicates a king, not a single word, michiru = to be full; to rise (tide); to mature; to expire
Mature ocean king
Kaiousei
(ocean king star)
Tenoh Haruka ten= sky, oh = king, haruka =far; far-away; distant; remote; far off
Distant sky king
Tenousei
(sky king star)

Other names are related as well to celestial bodies, such as some villains' names, the Three lights' and Mamoru's. However, that will be treated in another section.



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