8 letters · 11 points in Scrabble
noun a wooden warship of the 19th century that is plated with iron or steel armor
adjective sheathed in iron plates for protection
adjective inflexibly entrenched and unchangeable
originEtymology tree English iron Proto-Indo-European *gley-der. Proto-Germanic *klaiþijaną Proto-West Germanic *klaiþijan Old English clǣþan Middle English clethen Middle English clad English clad English ironclad From iron + clad.
Etymology from Wiktionary, CC BY-SA 3.0