es·o·ter·i·cism 
(ĕs′ə-tĕrĭ-sĭz′əm)
(ĕs′ə-tĕrĭ-sĭz′əm)n.
1. Esoteric teachings or practices.
2. The quality or condition of being esoteric.
- orthographist
- orthography
- ortholog
- orthologous
- orthologue
- orthomolecular
- orthomyxovirus
- orthopaedics
- orthopedic
- orthopedically
- orthopedics
- orthopedist
- orthopsychiatric
- orthopsychiatrical
- orthopsychiatrist
- orthopsychiatry
- orthopteran
- orthopterous
- orthopyroxene
- orthorhombic
- orthoscopic
- orthostatic
- orthotic
- orthotics
- orthotist