From Japanese 七 (nana) meaning "seven" and 海 (mi) meaning "sea". It can also come from 菜 (na) meaning "vegetables, greens" duplicated and 美 (mi) meaning "beautiful". Other kanji combinations are also possible.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.