Ninjia
[ˈnɪn.dʒə]Background Story
The sources checked do not record Ninjia as a name or as a word with a meaning.
Temperament

Related Names
Ninja
Japanese 忍者, a spy and infiltrator in pre-modern Japan
Hibiki
From Japanese 響 (hibiki), meaning "sound, echo"
Hotaka
Recorded as a masculine given name in Japanese
Katari
Means 'the one who is respected' in Japanese
Kiseki
The Japanese word for miracle
Kokoro
From Japanese 心 (kokoro), meaning "heart, mind, soul"
Makoto
From Japanese 誠 (makoto), meaning "sincerity"
Megure
Mighty
The English word meaning powerful or strong
Nako
Recorded as a rare feminine given name in Georgian and as a feminine given name in Japanese