Sieffre igama elona lifanelekileyo: Inhlanhla, Bokudala, Unika, Namhlanje, Ujonge. Fumana Sieffre intsingiselo yegama.
McIlwaine intsingiselo egqibeleleyo yegama: Ujonge, Ufanele, Ilumkele, Inhlanhla, Unika. Fumana McIlwaine intsingiselo yesinti.
Sieffre imvelaphi yegama lokuqala. Welsh form of Geoffrey. Fumana Sieffre imvelaphi yegama lokuqala.
Amagama alinganayo for Sieffre kumazwe ahlukeneyo neelwimi: Fredo, Gaufrid, Geffrey, Geoff, Geoffrey, Geoffroi, Geoffroy, Gisilfrid, Gjord, Gjurd, Godafrid, Godefroy, Godfrey, Godfried, Godofredo, Godtfred, Goffredo, Gofraidh, Goraidh, Gottfrid, Gottfried, Guðfriðr, Jeff, Jeffery, Jeffrey, Jeffry, Jep, Joffrey, Séafra, Siothrún, Walahfrid. Fumana Sieffre kwezinye iilwimi.
Amagama aqhelekileyo ngegama lokugqibela McIlwaine: Rosalba, Giuseppe, Kathey, Homer, Jeffrey. Fumana Amagama ahamba kunye McIlwaine.
Ukuhambisana Sieffre kunye McIlwaine yi 75%. Fumana Ukuhambelana Sieffre kunye McIlwaine.