meaning of coif
1. A cap.
2. A close-fitting cap covering the sides of the head, like a small hood without a cape.
3. An official headdress, such as that worn by certain judges in England.
4. To cover or dress with, or as with, a coif.
5. 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].