Used: "Every pusillanimous creature that crawls on the earth, 
or slinks through slimy seas has a brain!" 
(The Wizard before giving the Scarecrow his Diploma)
____________________________________________________________

aver - to confirm as authentic

Used: "As Coroner, I must aver, I thoroughly examined her, 
And she's not only merely dead, She's really most sincerely dead."
(The Coroner, singing in Munchkinland, verifying the death of the 
Wicked Witch of the East)

____________________________________________________________

cataclysmic - to inundate, flood, deluge

Used: "Well you force me into a cataclysmic decision." 
(The Wizard talking to Dorothy about how to get her back 
home to Kansas from Oz)
____________________________________________________________

cruller- a small, sweet cake in the form 
of a twisted strip fried in deep fat

Used: "Here, here - can't work on an empty stomach. 
Have some crullers." 
(Aunt Em speaking to the farmhands before Dorothy goes to Oz)
____________________________________________________________

careworn - showing the effect of grief or anxiety

Used: "She's - she's wearing a-a-polka dot dress. Her face is careworn." 
(Professor Marvel speaking to Dorothy while consulting the crystal ball)
____________________________________________________________

vernacular - using a language or dialect 
native to a region or country

Used: "There's a storm blowin! - a whopper, 
to speak in the vernacular of the peasantry!" 
(Professor Marvel as the wind increases and 
Dorothy leaves to return to the farm)
____________________________________________________________

beneficent- performing acts of kindness and charity

Used: "The beneficient Oz has every intention 
of granting your requests!"
(The Wizard speaking to the four as they first meet)
____________________________________________________________

mettle- vigor and strength of spirit/temperament/disposition

Used: "When a man's an empty kettle, he should be on his mettle, 
and yet I'm torn apart."
(Sung by The Tin Man in "If I Only Had a Heart")
____________________________________________________________

muddled - a state of mental confusion

Used: "Well, I'm a little muddled. The Munchkins called me 
because a new witch has just dropped a 
house on the Wicked Witched of the East..." 
(Glinda speaking to Dorothy as she has just arrived in Munchkinland)
____________________________________________________________

The following words were used in 
"If I Were King of the Forest" (sung by the lion)
----------------------------------

chintz - a printed calico from India/glazed 
printed cotton fabric

Used: "Would be satin, not cotton, not chintz"
_______________________

kowtow - to kneel and touch the forehead to the 
ground in token of homage

Used: "And the mountains bow and the bulls kowtow"
_______________________

genuflect - to touch the knee to the floor in worship

Used: "The chipmunks genuflect to me"
________________________

Hottentot - a member of a people of southern Africa 
apparently akin to both the 
Bushmen and the Bantus

Used: "What makes the Hottentot so hot?"
________________________
____________________________________________________________

caliginous - black, misty, dark

Used: "You dare to come to me for a heart, do you? 
You clinking, clanking, clattering collection of caliginous junk!"
(The Wizard speaking to the Tin Man as the foursome first meet him)
____________________________________________________________

affrontery - to insult to the face by behavior or language

Used: "And you, Scarecrow, have the affrontery 
to ask for a brain..." 
(The Wizard speaking to the Scarecrow as the 
foursome first meet him)
____________________________________________________________

bovine - of, resembling or relating to the ox or cow

Used: "...you billowing bale of bovine fodder!" 
(The Wizard speaking to the Scarecrow 
as the foursome first meet him)
____________________________________________________________

Whippersnapper - a diminutive, insignificant, 
or presumptuous person

Used: "Silence! Whippersnapper!  The beneficient Oz has 
every intention of granting your requests!" 
(The Wizard speaking to Dorothy after he has frightened 
the Lion when they first meet)
____________________________________________________________

meritorious - deserving of reward or honor

Used: "Therefore, for meritorious conduct, extraordinary valor, 
conspicuous bravery against wicked witches, I award you the Triple Cross." 
(The Wizard awarding the Lion with his medal after 
melting the Wicked Witch)
____________________________________________________________

hob-nob - to associate familiarly

Used: "To confer, converse and otherwise hob-nob with my brother wizards." 
(The Wizard speaking to the population of The Emerald City before departing)
____________________________________________________________

Among the resources used was:
"The Wizard of OZ" published by SMITHMARK Publishers Inc., New York