cob
ear
The word "ear" can come before "drum". But ear is not a true prefix. Instead, "eardrum" is simply a compound word and "ear" is not a prefix.
Anvil
Ear.
ear
The corn cob is the word you're looking for by changing one letter in the word mob.
an ear of corn
ear
ear
you know maize is corn right? maybe the Spanish word for stalk?
Cornell
arm, leg, ear,
Ear
The official definition of the word cob is "the central, cylindrical, woody part of the corn ear to which the grains, or kernels, are attached."
It means to take off the leafy part of the corn.
A cob can mean a male swan or the inner part of the corn ear. There are other meanings for this word. For example, cob can mean a short or stocky horse. It also can refer to a combination of clay and straw used as building material.
The ear of sweet corn is the fruit, or reproductive organ, of the corn plant.