[1] : The Collaborative International Dictionary of English v.0.48

camail \camail"\, n. f. camail cf. it. camaglio, fr. l.
   caput head + source of e. mail.
   1. ancient armor a neck guard of chain mall, hanging from
      the bascinet or other headpiece.
      1913 webster

   2. a hood of other material than mail; esp. eccl., a hood
      worn in church services, -- the amice, or the like.
      1913 webster camara dos pares
      camara

[2] : WordNet (r) 2.0

camail
     n : a medieval hood of mail suspended from a basinet to protect
         the head and neck syn: aventail, ventail
see also:
aventail ventail 

Camail >> C Words
Camail, definition of term: Camail
camail_pag1.html