Lexicography :  (noun)

1: the act of writing dictionaries

criticism, cryptanalysis, cryptography, cryptology, diagnostics, epigraphy, exegetics, glossography, hermeneutics, lexicology, lexigraphy, literary criticism, metoposcopy, oneirology, onomasiology, onomastics, onomatology, paleography, pathognomy, physiognomics, physiognomy, semantics, semasiology, semeiology, semeiotics, symptomatology, textual criticism, tropology,