PYRROLIDONE

de do ed el en er id in li lo ne no od oe oi on op or oy pe pi re ye yo

del den dey die din dip doe dol don dor dry dye eld end eon ern err ion ire led lei ley lid lie lin lip loo lop lye nil nip nod noo nor ode oil old ole one ono ope ore ped pen per pie pin ply pod poi pol poo pro pry pye red rei rep rid rin rip rod roe rye yen yep yid yin yip yod yon

deil deli deni deny diel dine dino diol dire dirl doer dole done door dope dopy dore dorp dorr dory drip drop dyer dyne enol idle idly idol idyl inly inro ired iron lend leno lido lied lien lier line lino liny lion lipe lire lode loid loin lone loon loop lope lord lore lorn lory lyre nerd nide node nodi noel noil noir nolo nope nori odor odyl oily oldy oleo olio only oped open ordo orle oyer pein pend peon peri pied pier pile pily pine piny pion pirn pled plie plod ploy pole polo poly pond pone pony pood pool poon poor pore porn prey prod pyin pyre pyro redo rein rely rend repo ride riel rile rind ripe rode roil role rood rope ropy rynd yeld yelp yipe yird yirr yond yoni yore