Stump

cabo

(remains of something that has been cut off)

estaca

(cricket: one of the three vertical wooden posts in the wicket)

muñón

(remains of something that has been cut off)

poste

(pole supporting a house)

punta final

(remains of something that has been cut off)

raigón

(remains of something that has been cut off)

raíz

(remains of something that has been cut off)

tocón

(remains of something that has been cut off)

estar sin respuesta

(to baffle or confuse)

no tener ni idea de cómo contestar

(to baffle or confuse)