HEAUME • DICCIONARIO INGLES.COM • Definition of Heaume

... a form of helmet or headpiece. The original small basinet was a light open cap, with a peaked crown. This was used alternately to, and even in conjunction with, the large heavy heaume. But in the latter half of the 13th century the basinet was developed into a complete war head-dress and replaced the heaume. In this form it was larger and heavier, had a vizor (though not always a pivoted vizor like that of the later armet), and was connected with ...

— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 - "Banks" to "Bassoon" • Various