http://www.statemaster.com/encyclopedia/Cingulate-cortex"Cingulate is an adjective (cingularis or cingulatus)"
http://www-personal.umich.edu/~tmarzull/Cingularity.pdf."The shape of this brain region presumably
inspired the German physiologists1 who discovered it to
name it the “cingulate,” derived from the Latin cingulum,
meaning a belt worn by Roman soldiers to protect their
groin. But like many great discoveries, it took much time
for the cingulate to grab hold of the conservative scientific
community. Since the early 1900s, sporadic reports have
described the neural correlates of the cingulate cortex."