orthography

noun, plural or·thog·ra·phies for 3–5.

1. the art of writing words with the proper letters, according to accepted usage; correct spelling.
2. the part of language study concerned with letters and spelling.
3. a method of spelling, as by the use of an alphabet or other system of symbols; spelling.
4. a system of such symbols: Missionaries provided the first orthography for the language.
5. an orthographic projection, or an elevation drawn by means of it.

noun plural -phies

1. a writing system
2. 1. spelling considered to be correct
   2. the principles underlying spelling
3. the study of spelling
4. orthographic projection

n.“correct or proper spelling,” mid-15c., ortographie, from Middle French orthographie (Old French ortografie, 13c.), from Latin orthographia, from Greek orthographia “correct writing,” from orthos “correct” (see ortho-) + root of graphein “to write” (see -graphy). Related: Orthographer.