nod·al 
(nōdl)
(nōdl)adj.
Of, relating to, resembling, being, or situated near or at a node.
nodal·ly adv.
- profession
- professional
- professionalism
- professionalization
- professionalize
- professionally
- professor
- professorate
- professorial
- professorially
- professoriat
- professoriate
- professorship
- proffer
- profferer
- proficiency
- proficient
- proficiently
- profile
- profiler
- profiling
- profit
- profitability
- profitable
- profitableness