Retha kacha mma aha pụtara: Oge a, Enyịn, Emesapụ aka, Ifịk, Oké njọ. Nweta Retha pụtara aha.
Bisio kacha mma aha nna pụtara: Oké njọ, Eji obi ụtọ, Okike, Obodo, Enyịn. Nweta Bisio pụtara aha nna.
Retha si malite aha mbụ. Short form of Margaretha. Nweta Retha si malite aha mbụ.
Agakọta aha maka Retha na mba dị iche iche na-asụ asụsụ: Gosia, Greet, Gréta, Greetje, Greta, Gretchen, Grete, Gretel, Grethe, Griet, Märta, Maarit, Maighread, Mairead, Mairéad, Maisie, Małgorzata, Małgosia, Mared, Maret, Margaid, Margalit, Margalita, Margaréta, Margareeta, Margareta, Margarete, Margaretha, Margarethe, Margarid, Margarida, Margarit, Margarita, Margaux, Marged, Margherita, Margit, Margita, Margot, Margrét, Margreet, Margrete, Margrethe, Margriet, Margrit, Marguerite, Marit, Marita, Marjeta, Markéta, Marketta, Marsaili, Marzena, Meggy, Mererid, Merete, Merit, Meta, Mette, Mysie, Reeta, Reetta, Rita. Nweta Retha na ndị ọzọ asụsụ.
Kasị nkịtị surnames na aha Retha: Swanay, Houlahan, Hotten, Hertz, Robinsons. Nweta List of surnames na aha Retha.
Kasị nkịtị aha na aha ikpeazụ Bisio: Yer, Retha, Sabine, Vicente, Lino. Nweta Aha na-aga na Bisio.
Ndakọrịta nke Retha na Bisio bụ 77%. Nweta Ndakọrịta nke Retha na Bisio.