Of the sea; dark-skinned
Morissa is a rare feminine elaboration of Maris or Morris. It likely derives from the Latin 'maris' meaning 'of the sea' or the name Maurice, which refers to Moorish or dark-complexioned heritage.
Less common today
Morissa isn't in the latest US Top 1000. It last peaked at #5,596 in 1994.
US births per 5-year period, 1990βpresent (SSA data).