Satoshi, an extremely common Japanese name, usually means "virtue and truth."

Naka means "inner" and moto means "source" but Nakamoto is also a very common Japanese surname.

The name was carefully selected to have such a significance.

中 = Naka = inside, inner, center, central

本 = Moto = source, origin, origination

Satoshi is not so straightforward to translate, because the meaning of a Japanese person's first name depends on the Kanji character that was used to spell it.