1. Dealing by enchantment; magical

Encyclopedia: Incantatory

• orthoptist
• orthorhombic
• orthoscope
• orthoscopic
• orthostatic
• orthostatic hypotension
• orthotics
• Orthotomus
• Orthotomus sutorius
• orthotropic
• orthotropous
• orthotropous ovule
• Ortilis vetula macalli
• ortolan
• ortolan bunting
• ortygan
• Orudis
• Orudis KT
• Orumiyeh
• Oruvail
• Orville Wright
• Orwell
• Orwellian
• Orycteropodidae
• Orycteropus