i guess it could be short for Rowena, but i think it sounds great by itself.  they used it recently in a will and grace episode for one of the minor characters.  other variations include Row, Roe, or Ro.

Rowe is an English surname. It could be derived from Raol (see Ralph) or Roland (see also). It could also be a topographic name for someone who lived near a row (?)
See Also: Ralph, Roland, Rowland

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