Landgrave modifies German Landgraf, going back to Middle High German lantgrāve. Its components refer to a territory and a noble rank.
The scored meanings concern the word’s components; the details of rank changed across historical settings.
Sources
- Merriam-Webster: landgrave
Middle High German lantgrāve combines lant, land or province, with grāve, count.
- Duden · Landgraf
Meanings of the older forms on the word path.
- Online Etymology Dictionary · landgrave
Meanings of the older forms on the word path.