adult, aerial, agile, annals, annul, annulled, apple, ariel, babble, babel, baffle, barrels, basil, basle, battle, bethel, burial, camel, careful, carol, carroll, cassel, castle, cattle, cavil, channel, chapel, chattel, crackle, dazzle, devil, eccles, ethel, ethyl, facile, federal, festal, flannel, fragile, gentle, gerald, grapple, gravel, harold, hegel, herald, jackal, kennel, kettle, level, levelled, levels, mammal, medal, meddle, merrill, metal, methyl, mettle, natural, nestle, nettle, paddle, panel, paschal, pebble, pedal, peril, pestle, petal, phenol, prattle, prayerful, rabble, rascal, rattle, rebel, revel, revelled, revels, reynolds, saddle, scaffold, settle, shackled, shackles, special, speckled, sterile, tackle, tassel, trammels, travel, travelled, travels, treble, vassal, vessel, vestal, wrestle

ancestral, apparel, dishevelled, dismantled, embattled, enamel, enamelled, especial, fitzgerald, imperil, imperilled, malarial, orchestral, seattle, unravel, unsettled, untrammelled

accidental, continental, departmental, detrimental, elemental, fundamental, instrumental, monumental, oriental, secretarial, sentimental, transcendental

developmental, transcontinental