coccygo-, coccyg-, coccyge-, coccyo-, coccy-

(Greek: cuckoo; the end of the vertebral column in man and in some apes; the rudiment of a tail)

This bone was probably identified with this nomenclature because of its supposed resemblance to a cuckoo's beak.

coccycephalus
coccydynia
coccygeal
coccygectomy
Surgical removal of the coccyx.

The coccyx is the last bone of the spinal column, sometimes referred to as man's vestigial tail. It is also identified as the last portion of the vertebral column just below the sacrum.

coccygodynia, coccyodynia (s) (noun) (no pl)
Pain in the coccygeal region (last bone of the spinal column); coccydynia: Coccygodynia can occur in the last part of the vertebral column just below the sacrum, a triangular bone at the base of the spine which joins to a hip bone on each side and forms part of the pelvis.
coccygotomy
coccyx
desmodynia (s) (noun) (no pl)
Suffering in a ligament: When Ginnie missed a step and fell down, she twisted her ankle and caused a sprain to the ligaments around the ankle and cause her to have desmodynia, which was exceedingly painful and throbbing.