Hilda is one of several feminine given names derived from the name Hild, formed from Old Norse hildr, meaning 'battle'. Hild, a Nordic-German Bellona, was a Valkyrie who conveyed fallen warriors to Valhalla. Warfare was often called Hild's Game. Hilda of Whitby was an early Christian saint. Hylda is a spelling variant. Hilde is a variant of Hilda. Another variation on Hild is Hildur. Hildy is an English nickname. Ildikó is a Hungarian form of the name. Related names include Brunhilde, Brynhild, Hildebrand, Hildegard, Gunhild, Krimhild, and Mathilde. Cultural influences.
https://en.wikipedia.org/wiki/Hilda