from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The following of religious laws or commandments as the chief aspect of religiousness.
from The Century Dictionary and Cyclopedia
- n. Strict adherence to law, especially in the nomistic religions, that is, religions which possess codes for the regulation of the cult and of life.
Ancient Greek νόμος (nomos, "law") + -ism (Wiktionary)