The name Bihar is derived from the Sanskrit and Pali word, Vihara (Devanagari: विहार), meaning "abode". The region roughly encompassing the present state was dotted with Buddhist vihara, the abodes of Buddhist monks in the ancient and medieval periods.
Name Maithili generally means Goddess Laxmi or Sita, is of Indian origin, Name Maithili is a Feminine (or Girl) name. This name is shared across persons, who are either Jain or Hindu by religion. Name Maithili belongs to rashi Sinh (Leo) and Nakshatra (stars) Makha.
What does Kosi mean? Kosi [kosi] as a name for boys is of Ghanaian derivation, and the name Kosi means "born on Sunday". Kosi is an alternate spelling of Kwasi (Ghanaian): Akan name.