Douglas Harper's Etymology Dictionary
fem. proper name, Old High German Hildegard, literally "protecting battle-maid;" for first element see Hilda; for second element see yard (n.1).
Wikipedia
The female name Hildegard derived from the Old High German words hild (=war or battle) and gard (=protection) and means "protecting battle-maid". Variant spellings include Hildegarde. The Polish, Portuguese, Slovene and Spanish version is Hildegarda; the Italian version is Ildegarda. Hildegárd is a Hungarian version. An ancient German version of the name was Hildegardis.
Hildegard is an ancient impact crater in the southern far side of the Moon, northwest of the larger Planck.
The crater's name was adopted by the IAU in February 2016.
Usage examples of "hildegard".
When they stopped, Gwendolyn looked up at Hildegard with a rueful expression.
Mostly compositions by Hildegard, who, I discovered, was a great composer in her own right.
We have no news from Count Hildegard, whether she or her brother Lord Dietrich mean to lead an army to aid us.
If Count Hildegard can win through, we will open the gates to receive her.
He had slaughtered Count Hildegard and then used her banner as part of an unscrupulous trick.
An old emeritus professor, Doctoran Hildegard, who was famed for his agnosticism, sipped his and announced that he now had evidence of the existence of the Deity.