lupine \ LOO-pahyn \ , adjective;
1. Savage; ravenous; predatory.
2. Pertaining to or resembling the wolf.
1. Any of numerous plants belonging to the genus Lupinus, of the legume family.
Thin as a whippet, she had later reported to her husband, with something canine, or rather lupine, in the face as well, the heavy-lidded eyes intelligent and watchful and pale.
— Michael Chabon, The final solution: a story of detection
Lupine derives from the Latin lupinus, “of the wolf.” The relation between the animal, savagery, and the plant of the same name is unclear.