Retha siyifikasyon Non pi bon: Modèn, Atantif, Jenere, Aktif, Grav. Jwenn Retha siyifikasyon nan non.
Retha orijin nan premye non. Kout fòm Margaretha. Jwenn Retha orijin nan premye non.
Non synonyme pou Retha nan diferan peyi ak lang: 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. Jwenn Retha nan lòt lang.
Surnon pi komen ak non Retha: Lauter, Bywaters, Verardi, Urben, Reglin. Jwenn Lis surnon ak non Retha.
Ki pi komen non ak siyati Cecilia: Sequoia, Pablo, Zackary, Cecilia, Sally, Cecília. Jwenn Non ki ale ak Cecilia.