PEDIFORM

de do ed ef em er fe id if me mi mo od oe of oi om op or pe pi re

def die dif dim dip doe dom dor fed fem fer fid fie fir foe fop for fro imp ire med mid mir mod mop mor ode ope ore ped per pie pod poi pom pro red ref rei rem rep rid rif rim rip rod roe rom

defi demo derm dime dire doer dome dope dore dorm dorp drip drop emir feod fido fire firm ford fore form froe from idem ired mire mode modi mope more omer oped peri perm pied pier poem pome pore prim prod prof prom redo reif repo ride rife rime ripe rode romp rope