-ectomy

1.
a combining form meaning “excision” of the part specified by the initial element, used in the formation of compound words:
tonsillectomy.
Origin
< Neo-Latin -ectomia. See ec-, -tomy
British Dictionary definitions for -ectomy

-ectomy

combining form
1.
indicating surgical excision of a part: appendectomy
Word Origin
from New Latin -ectomia, from Greek ek- out + -tomy
Word Origin and History for -ectomy

word-forming element meaning "surgical removal," from Greek -ektomia "a cutting out of," from ektemnein "to cut out," from ek "out" (see ex-) + temnein "to cut" (see tome).

-ectomy in Medicine

-ectomy suff.
Surgical removal: tonsillectomy.