limner

from WordNet (r) 3.0 (2006)

limner
    n 1: a painter or drawer of portraits [syn: {portraitist},
         {portrait painter}, {portrayer}, {limner}]

from The Collaborative International Dictionary of English v.0.48

Limner \Lim"ner\ (l[i^]m"n[~e]r), n. [F. enlumineur, LL.
   illuminator. See {Limn}, and cf. {Alluminor}.]
   A painter; an artist; esp.:
   (a) One who paints portraits.
   (b) One who illuminates books. [Archaic]
       [1913 Webster]