imperil /im-perˈil/ (formal)

To endanger

• bioluminescent
• biolyses
• biolysis
• biomagnetics
• biomarker
• biomarkers
• biomass
• biomasses
• biomaterial
• biomaterials
• biomathematician
• biomathematics
• biome
• biomechanical
• biomechanics
• biomedical
• biomedicine
• biomedicines
• biomes
• biometeorological
• biometeorology
• biometric
• biometrician
• biometricians
• biometrics