2 adjectives to describe gnaws

"As a moth gnaws a garment, so," saith Chrysostom, "doth envy consume a man;" to be a living anatomy: a "skeleton, to be a lean and pale carcass, quickened with a fiend", Hall in Charact.

ON FATALISM[10] Not always wealth, not always force A splendid destiny commands; The lordly vulture gnaws the corse That rots upon yon barren sands. Nor want, nor weakness still conspires To bind us to a sordid state; The fly that with a touch expires Sips honey from the royal plate.

2 adjectives to describe  gnaws