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

coif \coif\ koif or kwaumf, n. of. coife, f. coiffe, ll.
   cofea, cuphia, fr. ohg. kuppa, kuppha, miter, perh. fr. l.
   cupa tub. see cup, n.; but cf. also cop, cuff the
   article of dress, quoif, n.
   1. a cap. specifically:
      a a close-fitting cap covering the sides of the head,
          like a small hood without a cape.
      b an official headdress, such as that worn by certain
          judges in england. written also quoif.
          1913 webster

                from point and saucy ermine down
                to the plain coif and russet gown. --h. brocke.
          1913 webster

                the judges, . . . althout they are not of the
                first magnitude, nor need be of the degree of
                the coif, yet are they considerable. --bacon.
          1913 webster

   2. a coiffure.
      pjc
see also:
cup cop cuff quoif quoif coiffure 

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

coif \coif\ koif or kwaumf, v. t. cf. f. coiffer.
   to cover or dress with, or as with, a coif.
   1913 webster

         and coif me, where i'm bald, with flowers. --j. g.
                                                  cooper.
   1913 webster

[3] : WordNet (r) 2.0

coif
     n : a skullcap worn by nuns under a veil or by soldiers under a
         hood of mail or formerly by british sergeants-at-law
     v 1: cover with a coif
     2: arrange attractively; "dress my hair for the wedding" syn:
        dress, arrange, set, do, coiffe, coiffure
     also: coiffing, coiffed
see also:
dress arrange set do coiffe coiffure 
coiffing coiffed 

[4] : Moby Thesaurus II by Grady Ward, 1.0

44 moby thesaurus words for "coif":
   afro, barber, bob, bonnet, boot, breech, cap, ceil, cloak, coat,
   coiffure, cold wave, conk, cork, crown, dome, frock, gown, haircut,
   hairdo, hairstyle, hat, headdress, home permanent, hood, jacket,
   mantle, natural, permanent, permanent wave, pompadour, process,
   roof, roof in, shingle, shirt, shoe, sock, stocking, stopper, tip,
   top, trim, wave

[5] : The Free On-line Dictionary of Computing (27 SEP 03)

coif
     
        fortran with interactive graphic extensions for circuit
        design, on univac 1108.
     
        "an interactive software system for computer-aided design: an
        application to circuit projects", cacm 913 sep 1970.
     
        1995-01-04
     
     
see also:
fortran univac 1108 

[6] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

coif. a head-dress. in england there are certain serjeants at law, who are 
called serjeants of the coif, from the lawn coif they wear on their heads 
under their thin caps when they are admitted to that order. 

Coif >> C Words
Coif, definition of term: Coif
coif_pag1.html