Answer: basinet

AnswerCrossword Clue
BASINET14th century helmet
BASINETMedieval helmet
BASINETClose-fitting steel helmet.
BASINETSteel helmet
basinetsupplementary cap that is worn underneath a helm, as an arming cap
basineta light helmet, also BASCINET, BASNET
basinetglobular or pointed helmet of the 14th century, often provided with a visor or aventail: evolved from the cervellière