- Adulterate: (v) To make impure or inferior by adding extraneous, unusual or improper ingredients. (from the Latin adulterare – to pollute)
- Bane: (n) A cause of death, destruction, or ruin. (from the Old English bana – destroyer)
- Boon: (n) Something beneficial that is bestowed; blessing. ( from the Old Norse bon - prayer)
- Exorcise: (v) To expel (an evil spirit) To free from evil spirits. (from the Greek ex (out) and horkos (oath))
- Inimical: (v) Injurious or harmful in effect. Unfriendly; hostile (from the Latin in (not) and amicus (friend))
- Panacea: (n) A remedy for all diseases, evils or difficulties; cure-all. From the Greek pan (all) and akos (cure))
- Pernicious: (adj) Tending to cause death or serious injury; deadly. Causing great harm; destructive; ruinous. (from the Latin per (intensely) and nex (violent death))
- Salutary: (adj) Designed to effect an improvement; remedial. Favorable to health (from the Latin salus (health))
- Toxic: (adj) Poisonous. Harmful, destructive or deadly. (from the Greek toxikon ( poison for arrows))
- Vitiate: verb To impair the value or quality of. To corrupt morally; debase. To make ineffective; invalidate (from the Latin vitium (fault))