Anagrams of: PERFERVIDITY

• become crystalline

• make (glassy materials) brittle or opaque

• characterized by intense emotion

• embody the essential characteristics of or be a typical example of

• express indirectly by an image, form, or model; be a symbol

• change into glass or a glass-like substance by applying heat

• undergo vitrification; become glassy or glass-like

• betrayal of a trust

• an act of deliberate betrayal

• confirm the truth of

• check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard

• attach or append a legal verification to (a pleading or petition)

• to declare or affirm solemnly and formally as true

• proved to be true