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

-ation \-a"tion\ l. -ationem. see -tion.
   a suffix forming nouns of action, and often equivalent to the
   verbal substantive in -ing. it sometimes has the further
   meanings of state, and that which results from the action.
   many of these nouns have verbs in -ate; as, alliterate
   -ation, narrate -ation; many are derived through the french;
   as, alteration, visitation; and many are formed on verbs
   ending in the greek formative -ize fr. -ise; as,
   civilization, demoralization.
   1913 webster
see also:
-tion 

-Ation >> A Words
-Ation, definition of term: -Ation
-ation_pag1.html