no·mol·o·gy 
(nō-mŏlə-jē)
(nō-mŏlə-jē)n.
The theoretical study of metaphysical, logical, divine, or human laws.
[Greek nomos, law; see nem- in the Appendix of Indo-European roots + -LOGY.]
nom′o·logic (nŏm′ə-lŏjĭk, nō′mə-), nom′o·logi·cal (-ĭ-kəl) adj.
nom′o·logi·cal·ly adv.
no·molo·gist n.