Sentences:  A declaration of war would of course ____ the treaty. 
The legislature has the right to ____ old laws as well as to enact new
ones.  Because they left his grounds littered with paper, he ____ their
privilege of holding picnics there.  The king ____ the decree that the
conspirators should be exiled.  Slavery was ____ by the Emancipation
Proclamation.  The emperor ____ many of the ancient rights of the people. 
They ____ the mortgage when he paid the money.  The violation of these
provisions has ____ the contract.  It was an ill day for France when the
Edict of Nantes was ____ by Louis XIV.  The Supreme Court ____ the decision
of the lower tribunal.  The Mormons have officially ____ polygamy.  The
codicil ____ some of the earlier provisions in his will.

Acquit, exculpate, exonerate, absolve.

Sentences:  He ____ himself from all blame.  The king ____ them from
their allegiance.  The teacher ____ the student who had been suspected of
theft.  The father confessor ____ the penitent.  The jury ____ the man on
the first ballot.

Afraid, fearful, frightened, alarmed, scared, aghast, terrified, timid, timorous. (This group may be compared with the Fear group, below.)

Sentences: One child was to ____ to speak to the strangers; the
other too ____ to do anything but squall.  “If Caesar hide himself, shall
they not whisper ’Lo, Caesar is ____’?” Any one might have been ____ by
this noise in a room said to be haunted; and for my part, I stood ____.

Allay, alleviate, mitigate, assuage, mollify, relieve.

Sentences: The judge ____ the severity of the punishment.  They
collected funds to ____ the sufferings of the poor.  He could not ____ the
wrath of the angry man.  Shall we try to ____ their fears by telling them
the accident may have been less calamitous than they have heard?  A mustard
plaster ____ the pain.  The grief of the mother was ____ by the presence of
her child.  This experience had by no means ____ his temper.

Allow, permit, suffer, tolerate.

Sentences: Visitors are not ____ to see the king.  The over-running
of yard by the neighbors’ chickens is a nuisance I shall not ____.  “____
little children to come unto me.”  The use of bicycles and velocipedes
on the pavement, though not ____ by the city, is good-naturedly ____ by
most of the citizens.  She ____ her children to play in the street.

Ascribe, attribute, impute.

Sentences: I ____ my failure to poor judgment.  He ____ sinister
motives for their actions.  So many ideal characteristics have been ____ to
Washington that it is difficult to think of him as a man.

Awkward, clumsy, ungainly, gawky, lanky.

Sentences: An elephant is  ____ in its movements.  Some ____
countrymen hung around the circus entrance.  He was tall and ____; he
seemed to be a mere prop on which clothes were hung.  Isn’t that man ____
in his carriage?  The fingers of the ball-players might as well have been
thumbs, so ____ were they from the cold.  Girls throw a ball in a[n] ____
manner.

Bite, nibble, gnaw, chew, masticate, champ.