As nouns the difference between earldom and dukedom
is that earldom is the rank of being an earl while dukedom is a region ruled by a duke or duchess; a duchy.
earldom
English
Noun
(
en noun)
the rank of being an earl
* 1592, William Shakespeare, King Richard III
- And, look when I am king, claim thou of me / The earldom of Hereford, and all the movables / Whereof the king my brother was possess'd.
The territory controlled by an earl
Anagrams
*
dukedom
English
Noun
(
en noun)
A region ruled by a duke or duchess; a duchy.
The rank or title of a duke.