Realm
Realm (relm) , noun
[Old English realme, ream, reaume, Old French reialme, roialme, French royaume, from (assumed) Late Latin regalimen, from Latin regalis royal. See Regal.]
1.
A royal jurisdiction or domain; a region which is under the dominion of a king; a kingdom.
The absolute master of realms on which the sun perpetually shone.
2.
Hence, in general, province; region; country; domain; department; division; as, the realm of fancy.