verb/enflakeˈθeɾ/
to make thin, weaken, emaciate (to cause to become extremely thin or wasted); to thin out, lose weight (to become less heavy or obese); to grow weak (to lose one's physical strength)
“El Colocolo es una ratoncillo muy bravo. Anida cerca de las habitaciones, y la persona a quien le bebe la saliva, comienze desde momento a enflaquecer y a desfigurarse, y concluye morir, si no se logra matar a tiempo al animalejo.”
From en- + flaco (“thin”) + -ecer, from Latin flaccus.