Latin Chirurgiae Doctor (Doctor of Surgery)
The whole structure is known as the tela vasculosa, or choroid plexus of the fourth ventricle (fig. 250, chd 4).
The sound of gh is represented also by dh; and final c often, though corruptly, represents the same sound with chd.
In many, if not all the instances in which chd occurs, the ancient Irish wrote ct.