Modern creation, likely a variant of Damiyah or Amiyah
Dmiyah is a modern American name with no singular established etymology. It is most likely a creative blend or a variant of names like Amiyah, which is often associated with the Hebrew word for 'people of God', or Damiyah, an Arabic name meaning 'bloody' or 'tearful' in a poetic sense. Its usage is primarily driven by its melodic sound and the popular 'iyah' suffix.
Less common today
Dmiyah isn't in the latest US Top 1000. It last peaked at #8,670 in 2017.
US births per 5-year period, 1990βpresent (SSA data).