It's a ships name - most, if not all Japanese vessels end with the suffix maru.
maru means round in japanese ships
You may say 'maru.'
Do you mean Orochimaru? Orochi = Large Serpent Maru = common male japanese name.
Japanese battleship Kaiyō Maru ended in 1869.
Japanese barque Kankō Maru ended in 1876.
Japanese barque Kankō Maru was created in 1853.
Japanese warship Kanrin Maru ended in 1871.
Japanese warship Shohei Maru was created in 1854-12.
Japanese battleship Kaiyō Maru was created on 1866-09-10.
Japanese seaplane tender Kamikawa Maru was created on 1937-09-18.
Japanese seaplane tender Kiyokawa Maru was created on 1941-10-05.
maru means circle but it is also used like we use SS in SS Titanic so if the Titanic were a Japanese ship she would be titanic maru