Retha incazelo engcono kakhulu yegama: Isimanje, Ngokucophelela, Unika, Esebenzayo, Sína. Thola Retha kusho igama.
Sieberg izincazelo zegama elihle kakhulu: Isimo sengqondo, Sína, Unamandla, Ujabule, Ukudala. Thola Sieberg incazelo yesibongo.
Retha imvelaphi yegama lokuqala. Short form of Margaretha. Thola Retha imvelaphi yegama lokuqala.
Amagama afanayo for Retha emazweni ahlukene nezilimi ezahlukene: 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. Thola Retha kwezinye izilimi.
Amagama amaningi avamile ngegama Retha: Causey, Dydell, Brogley, Schnickel, Garbal. Thola Uhlu lwamagama ngegama Retha.
Amagama avame kakhulu ngegama lomsebenzisi Sieberg: Katherin, Shandi, Sherika, Beulah, Cyndy. Thola Amagama ahamba ne- Sieberg.
Ukuhambisana kwe- Retha kanye Sieberg kuyinto 72%. Thola Ukuhambisana kwe- Retha kanye Sieberg.