tomo-,-tom, -toma, -tomic, -tomize, -tome, -tomical, -tomically, -tomist, -tomous, -tomy; -otomy
(Greek: cut, incision; section; more often used as a suffix)
Related cutting-word units: cast-; castrat-; -cise, -cide; -ectomy; mutil-; put-; sec-, seg-; temno-; trunc-.