ridgeling

• ridgling

From ridge +‎ -ling, presumably from the supposition the remaining testicle(s) remain(s) near the back.

ridgeling (plural ridgelings)

1. male animal with at least one testicle still in the inguinal canal
2. imperfectly castrated male

• Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967

• regilding