Marsheena is likely a modern elaboration of Marsha, from Latin Mars, the Roman god whose name meant martial.
Marsheena is likely a modern elaboration of Marsha, ultimately from Latin Mars, the Roman god whose name meant martial. That creates an interesting contrast between the softer feminine form and the more forceful classical source.
The name feels ornamental, but it still has a mythic backbone. In modern use, Marsheena sounds graceful and expressive. The longer form gives it a flowing, almost musical cadence that distances it from the more clipped original.
It belongs to a style of naming that turns familiar roots into more elaborate personal forms. Marsheena feels rare, but its layered sound makes it memorable and easy to place within modern creative naming.