-graphy

from The Century Dictionary.

• noun A terminal element in compound words of Greek origin, meaning ‘writing, description, discourse, seience,’ as in biography, geography, hagiography, hydrography, topography, typography, etc. Such nouns are accompanied by an adjective in -graphic, -graphical, and often by a concrete noun in -graph.

from the GNU version of the Collaborative International Dictionary of English.

• A suffix denoting the art of writing or describing; also, the writing or description itself; a treatise.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• suffix Represents something written or represented in the specified manner, or about a specified subject.