Source : Webster's Revised Unabridged Dictionary (1913)

Comportment \Com*port"ment\, n. [F. comportement.]
   Manner of acting; behavior; bearing.

         A graceful comportment of their bodies.  --Cowley.

         Her serious and devout comportment.      --Addison.

Source : WordNet®

comportment
     n : dignified manner or conduct [syn: {bearing}, {presence}, {mien}]