Serious or determined
Ernesha is a modern American elaboration of the name Ernestine, which is the feminine form of Ernest. It derives from the Germanic word 'eornost', signifying seriousness, earnestness, or a battle to the death.
Less common today
Ernesha isn't in the latest US Top 1000. It last peaked at #9,301 in 1992.
US births per 5-year period, 1990βpresent (SSA data).