CENTROID

de do ed en er et id in it ne no od oe oi on or re ti to

cod con cor cot den die din dit doc doe don dor dot end eon ern ice ion ire net nit nod nor not ode one orc ore ort rec red rei ret rid rin roc rod roe rot ted ten tic tie tin tod toe ton tor

cedi cent cero cine cion cire cite code coed coin coir cone coni cord core corn cote cred crit deco deni dent dice diet dine dino dint dire dirt dite doer doit done dore dote edit etic iced icon inro into ired iron nerd nice nide nite node nodi noir nori note odic once otic redo rein rend rent rice ride rind riot rite rode rote roti tend tern tide tied tier tine tire tiro toed tone torc tore tori torn trio trod