Istítico, as Stítico.
Istituíre, as Instituíre.
Istitutióne, as Institutióne.
Istitúto, as Institúto.
Istízza, as Stízza.
Istizzáre, as Stizzáre.
Istizzonáre, as Stizzáre.
Istizzóne, as Stizzóne.
Ístmici giuócchi, certaine sacred games among the Grecians.
Ístmo, a narrow path or part of a land or countrie where two seas are but a narrow or small distance asunder enclosing the land on both sides. Also the middle part or bridge of a mans nose.