megilp

from WordNet (r) 3.0 (2006)

megilp
    n 1: a medium for oil-paints; linseed oil mixed with mastic
         varnish or turpentine [syn: {megilp}, {magilp}]

from The Collaborative International Dictionary of English v.0.48

Megilp \Me*gilp"\, Megilph \Me*gilph"\, n. (Paint.)
   A gelatinous compound of linseed oil and mastic varnish, used
   by artists as a vehicle for colors. [Written also {magilp},
   and {magilph}.]
   [1913 Webster]