Meaning

noun a large and stately mansion

noun a large building formerly occupied by a ruler and fortified against attack

noun (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard

originEtymology tree Proto-Indo-European *ḱes-der. Proto-Indo-European *-tḗr Proto-Indo-European *-tromder. Proto-Italic *kastrom Latin castrum Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lum Latin castellumbor. Proto-West Germanic *kastell Old English castel Middle English castel English castle From Middle English castle, castel, from late Old English castel,…

Etymology from Wiktionary, CC BY-SA 3.0