from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The keeper or governor of a castle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The governor or caretaker of a castle or keep.
from the GNU version of the Collaborative International Dictionary of English
- n. A governor or warden of a castle.
from The Century Dictionary and Cyclopedia
- n. A governor or constable of a castle. Also written castellain.
Middle English castelain, from Norman French, from Medieval Latin castellānus, from Latin, of a fortress, from castellum, stronghold; see castle.(American Heritage® Dictionary of the English Language, Fourth Edition)
Old French castelain, French châtelain, Latin castellanus pertaining to a castle, an occupant of a castle, Latin, a governor of a castle, from Latin castellum castle, citadel, diminutive of castrum fortified place. See castle and compare chatelaine. (Wiktionary)