Of the sea; dark-skinned
A feminine elaboration of Morris, which itself derives from Maurice. It ultimately traces back to the Latin name Mauricius, meaning Moorish or dark-skinned, but is also frequently associated with the Latin word for sea, 'mare'.
Less common today
Morrissa isn't in the latest US Top 1000. It last peaked at #9,126 in 1994.
US births per 5-year period, 1990βpresent (SSA data).