heaume

[hohm] /hoʊm/
noun
1.
helm2 (def 1).
Origin
1565-75; < Middle French, Old French helme < Germanic; see helm2
British Dictionary definitions for heaume

heaume

/həʊm/
noun
1.
(in the 12th and 13th centuries) a large helmet reaching and supported by the shoulders
Word Origin
C16: from Old French helme; see helmet