Tonai

The name Tonai is of Japanese origin. While not extremely common, it is a traditional name that carries a clear meaning related to birth order. In Japanese culture, names often have deep meanings and can reflect characteristics, hopes, or circumstances surrounding a child's birth. 'To' can mean 'first' or 'eldest', and 'nai' can be a suffix indicating a female name or related to 'birth'.

Its usage is primarily within Japan, and it is less known internationally. The simplicity and directness of its meaning make it a straightforward choice for parents wishing to honor the first-born status of their daughter. It does not appear to have significant historical or mythological associations outside of its direct meaning.