de do ed ef en ne no nu od oe of on un
den doe don due dun duo end eon fed fen feu foe fon fou fud fun nod ode one oud udo
done dune fend feod feud fond fund node nude unde undo
fondu found unfed
Chwiliad newydd
Rhai geiriau ar hap: eissu geyserites pentangles phalangers cotenants