Gwilym kacha mma aha pụtara: Eji obi ụtọ, Emesapụ aka, Enyi na enyi, Eru, Okike. Nweta Gwilym pụtara aha.
Mac Cana kacha mma aha nna pụtara: Enyi na enyi, Eji obi ụtọ, Ifịk, Oké njọ, Eru. Nweta Mac Cana pụtara aha nna.
Gwilym si malite aha mbụ. Welsh form of William. Nweta Gwilym si malite aha mbụ.
Gwilym aha diminutives: Gwil. Nweta Nicknames maka Gwilym.
Agakọta aha maka Gwilym na mba dị iche iche na-asụ asụsụ: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwilherm, Illiam, Jami, Jelle, Liam, Pim, Uilleag, Uilleam, Uilliam, Ulick, Vilĉjo, Vilém, Vilhelm, Vilhelmas, Vilhelmi, Vilhelmo, Vilhelms, Vilhjálmur, Vilho, Vili, Viliam, Vilim, Vilis, Viljami, Viljem, Viljo, Vilko, Ville, Villem, Vilmos, Wil, Wilhelm, Wilhelmus, Wilkin, Wilky, Will, Willahelm, Willem, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Nweta Gwilym na ndị ọzọ asụsụ.
Kasị nkịtị surnames na aha Gwilym: Williams, Panah-williams, Panah. Nweta List of surnames na aha Gwilym.
Kasị nkịtị aha na aha ikpeazụ Mac Cana: Liam. Nweta Aha na-aga na Mac Cana.
Ndakọrịta nke Gwilym na Mac Cana bụ 80%. Nweta Ndakọrịta nke Gwilym na Mac Cana.