Wilhelmina
German feminine name of English WILLIAM;
1. resolute protector. Sindarin: (bold protector) Beriorgan
Another possible name is BERIORCHAN (if liquid mutation can apply in this case).
2. will. Sindarin: Innas; fem. Innasseth
3. strong helmet. Sindarin: Tholvell; fem. Tholvelleth
4. from German name WILHELM; compound consisting of ‘will/desire’ & ‘helmet/protection’. Sindarin: (‘helm’ & ‘will’) Tholinnas