Ectomy
A surgical suffix referring to the removal of something.
For example, a lumpectomy is the surgical excision of a lump which may be benign or not, tonsillectomy is the removal of the tonsils, a partial colectomy is removal of part of the colon, an appendectomy is removal of the appendix, etc.
From the Greek 'ek' (out) + 'tome' (a cutting) = a cutting out