adult, aerial, agile, annals, annul, annulled, apple, Ariel, babble, Babel, baffle, barrel, Basil, Basle, battle, Bethel, burial, camel, careful, 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