【医】 protocephalon
former; original
【化】 ortho-
【医】 arch-; arche-; ortho-; pro-; prot-; proto-
beginning or end; cobbra; conk; crumpet; end; first; garret; hair; head
leading; nob; noddle; pate; sconce; side; top; twopenny
【医】 capita; caput; cephal-; cephalo-; head; kephal-; kephalo-