The name Aiki-Jutsu in Chinese / Japanese...

合気術 (Aiki-Jutsu) is a school of martial arts descended from Daitō-ryū Aiki-jūjutsu.

Note: Some also romanize 合気術 as Aiki-Jitsu.

This is the Japanese martial arts Aiki O'Kami.

The Aiki (合気/合氣) means harmonious energy. While Okami or O'kami (大神) means great spirit.

You will usually see this title written as 合氣大神, though in modern Japanese (after 1945) the second character, 氣, was simplified to 気 in Japan (and 气 in China). I suggest you use 合氣大神, but please let me know when you order if you would prefer 合気大神 instead.

大東流合気柔術 is Daitō-Ryū Aiki-jūjutsu, a Japanese martial art established by Takeda Sōkaku.

The most famous student of Daitō-Ryū Aiki-jūjutsu is Morihei Ueshiba who later founded the school or branch of martial arts known as Aikido.

Note: 大東流合気柔術 can also be romanized as Daito-ryu Aiki-Jujutsu, Daitou-Ryuu Aiki-Juujutsu or Daito-Ryu Aiki-Jujitsu.

護身術 is the title for Goshin Jutsu (or Jitsu) in Japanese Kanji.

武道会術 is the title “Budo Kai Jutsu” in Japanese Kanji.

講道館護身術 is the title for Kodokan Goshin Jutsu (or Jitsu) in Japanese Kanji.

体術 is the martial arts term Tai Jutsu in Japanese Kanji.

Taijutsu is a general term referring to virtually all Japanese martial arts styles that involve the use of the body (perhaps not weapons). The literal meaning of 体術 is “body technique” or “body skill.”

I included the Chinese pronunciation, but this is rarely used in Chinese.

合気剣 is Aiki-Ken, a style of Japanese sword technique.

合気柔術 is the title for the Japanese martial arts style known as “Aiki-Jujutsu.”

合気武道 is the title Aiki-Budo or “Aiki Martial Arts” in Japanese Kanji.

合 means “union” or “harmony.”
気/氣 means “universal energy” or “spirit.”
武 means “martial” or “military.”
道 means “way” or “method.”

合気武道 is the modern Japanese way to write this. You may also see 合氣武道, where the second character is written in the older traditional (pre-1945) form. If you want this written 合氣武道, just include a note or email with your order.

合氣武道 are all Chinese characters as well, so I included the Chinese pronunciation above. However, while it can be understood in Chinese, this is not a common term in that language and is not used in any Chinese martial arts. Also, 気 is only used in Japan - Chinese will understand 気 to be the Japanese form of 氣.

See Also:  Martial Arts | Hapkido

武産合氣 is one of the core spiritual concepts developed by Morihei Ueshiba to support his practice of Aikido.

Breaking down the characters:

武 - Bu (as in Bushido) is read as “Take” here. It means martial.

産 - Musu means innocent or naive, but also refers to the idea of birth and creation.

合氣 - Aiki as in Aikido - unifying spirit.

合気会 or “Aikikai” is the original school of Aikido.

Several organizations use this title. The first was established in Japan in 1940 (The Aikikai Foundation or 財団法人合気会).

The only difference between this title and Aikido is the last character, “kai” which means club, group, fraternity, organization, or assembly.

Note: 合気会 may be romanized with a dash like this: Aiki-Kai.

This is Spinjitzu, Spin-Jitsu, or Spin-Jutsu from the Lego TV show Ninjago.

Note: Because this selection contains some special Japanese Katakana characters, it should be written by a Japanese calligrapher.

仁神術 is Jin Shin Jyutsu or Jin Shin Jutsu.

This is a practice of calming the mind and clearing the flow of Qi energy in the body. Jin Shin Jyutsu has some commonality with the practice of Reiki.

A good translation of 仁神術 would be “Benevolent Spirit Method.”

We can break that down into all of the possible meanings:

仁 = benevolence (esp. as a virtue of Confucianism), consideration, compassion, humanity, charity, kindness, or virtue.

神 = deity, soul, spirit, mysterious, psyche, god, divinity, spiritual powers, deva, divine, spiritual, or supernatural.

術 = way, method, means, art, trick, or plan. The correct romaji for this 術 Kanji should be “jutsu.” However, in martial arts, this is often written “jitsu” but in this case, “jyutsu” became common.

棒術 is the title Bōjutsu (though some use the romanization Bojitsu).

棒術 is a martial art centered around using a “bō” or staff as a weapon.

This title is a combination of the Japanese word “bō” (which means staff, stick, club, rod, pole, or cudgel) with the Japanese word “jutsu” (which means art or technique).

While this word can be pronounced in Chinese (bang shu), it's not a common term in China. Please consider this title to be “Japanese only.”

柔術 has been somewhat incorrectly spelled and pronounced “Jujitsu” for some time in the English-speaking world. The correct Japanese Romaji is Jujutsu or Juujutsu.

A little background on the word: By combining the Kanji pronounced “Ju” (which means flexible, pliable, gentle, yielding) with the Kanji pronounced “Jutsu” (which means art or technique), we get a meaning that can be translated as “flexible technique,” “gentle art” or “yielding technique.”
柔術 does make sense in Chinese as well, although pronounced “rou shu” in China.

The Jujutsu system has a history in Japan that started well before the 1600s. Some see this style as a variation of the “Empty Hand Method” (Karate-do). Even the samurai of old used some Jujutsu methods in defending themselves with their unarmed hands against weapons that could pierce their heavy armor.

There are convoluted relationships between various schools and systems of martial arts, but it's generally accepted that Jujutsu led to the development of Judo and a few other variations.