This is the 6347th most frequent Portuguese word.
deplume
The Portuguese word "deplume" means "to pluck feathers from."
deplumou refers to stripping off leaves, analogous to plucking feathers from a bird.
O vento forte deplumou as árvores do jardim.
The strong wind stripped the trees in the garden.
deplumava indicates the action of removing feathers from chickens.
Ela cálmamente deplumava as galinhas para o almoço.
She calmly plucked the chickens for lunch.
deplumou metaphorically conveys the act of taking away or diminishing one's confidence.