Mertis \m(e)-rtis, mer-tis\ as a girl's name is a variant of Myrtle (Latin). See for meaning of Mertis.
The baby name Mertis sounds like Myrtis and Mertice. Other similar baby names are Meris, Artis, Maris, Marris, Martie, Marti, Mercie, Merci, Myrtie, Mirtie and Mertle.