s doubled, and the word is
spelled, _referred_."

refer + ed gallop + ed suspend + ed suffer + ing
omit + ed abhor + ence kidnap + ed travel + ed
cheat + ed join + ing admit + ing rebel + ious
flatter + ed benefit + ed differ + ence fertil + izer
prefer + ing permit + ed enamel + ed quarrel + ing
remit + ance map + ing drug + ist brag + art
heap + ing connect + ing emit + ed unfit + ed
confer + ing offer + ed conceal + ed parallel + ed
acquit + ed* commit + ee shelter + ed stir + ing
root + ed squeal + ing intermit + ent equal + ed
depend + ent begin + er cheer + ed vigor + ous
occur + ed shovel + ed forgot + en regret + ed
submit + ed transmit + ed drum + er spin + ing

* After _q_, _u_ is a consonant.

EXCEPTIONS.

The final consonant is not doubled when, in the derivative, the accent
is thrown from the last syllable of the primitive; as, _re fer'_,
_ref'er ence_.

ref'er ence def'er ence ref er ee'
pref er ence in fer ence ref'er a ble _or_
con fer ence pref er a ble re fer'ri ble

OTHER EXCEPTIONS.

gas es (but gassy) tranquillity
gas eous humbug ging trans fer able
crystallize humbug ged ex cellence
chagrined

NOTE.--There is a large class of words ending in _l_, and accented on
some other syllable than the last, in whose derivatives the _l_ is
doubled by many writers; but it accords more with the analogy of the
language not to double the _l_. Such words are the following: apparel,
cancel, channel, cudgel, dishevel, drivel, duel, enamel, equal,
gambol, grovel, jewel, libel, marshal, marvel, metal, model, panel,
peril, quarrel.

REFERENCE TABLE OF SUFFIXES.

_able_, see ble
_age_, that which, having
_ain_, see ian
_al_, pertaining to
_an_, pertaining to, one who
_ant_, one who, that which, quality of, condition of
_ary_, one who, that which, place where, condition of, quality of,
pertaining to
_ate_, act of, state of, shaped like
_ble_, capable of, fit to be
_cle_, little, that which
_ed_, condition of
_ee_, one who
_ence_, see ant
_ent_, see ant
_er_, one who, that which
_es_, see er
_et_, little
_ful_, full of, having
_fy_, to make
_ial_, see al
_ian_, one who
_ible_, see ble
_ic_, pertaining to
_il_, see ile
_ile_, capable of,