Noble type
Alyssha is a modern phonetic variant of Alicia or Alice. It ultimately derives from the Germanic name Adalheidis, which combines the elements 'adal' meaning noble and 'heid' meaning kind or type.
Less common today
Alyssha isn't in the latest US Top 1000. It last peaked at #6,115 in 1990.
US births per 5-year period, 1990βpresent (SSA data).