Late 19th century; earliest use found in The Century Dictionary. From ancient Greek πέος penis (from the same Indo-European base as classical Latin pēnis) + -tomy.
Definition of peotomy in US English:
peotomy
nounpiːˈɒtəmi
rare
Penectomy.
Origin
Late 19th century; earliest use found in The Century Dictionary. From ancient Greek πέος penis (from the same Indo-European base as classical Latin pēnis) + -tomy.