intense happiness; bliss; a marked feeling of well-being or elation

eu- good feeling

I felt euphoria, or happiness! :)

the use of artificially bland language so as not to offend

eu- good, pleasing

Euphemisms don't offend people because they are tactful. 

a speech in praise of some person or thing, esp. in honor of the dead; enthusiastic public praise

eu- good, pleasing

log- to speak

I gave a eulogy for my deceased grandmother. I praised her in public.

the effect produced by words so combined as to please the ear; a pleasant aural quality

eu- good, pleasing

phon- sound

I don't have a sentence for this.

a place of ideal perfection; an impractical scheme for social improvement

us/ut- to use

My utopia was my place of ideal perfection.

a cone shaped device used to intensify or direct the voice; sound magnifiers

magn- great, big

phon- sound

I used a megaphone to intensify my voice so the audience could hear me. 

harsh or discordant sound; lack of musical harmony

phon- sound

The cacophonous child lacked musical harmony. Tone-deaf was putting it mildly. 

a society characterized by human misery, etc.

dys- faulty, bad

The dystopia was filled with miserable people. It was a horrible society.

a learning disability marked by difficulty reading, writing, and spelling

dys- faulty, bad

lex- something with words (lexicon)

My friend Dianna has dyslexia. This means she cannot read, write, or spell easily.

advantage; useful aid; a performance or event to raise funds; something helpful

bene- good, pleasing

The patriots had a benefit in the American Revolution.

doing or producing good; ready to be of service

bene- good, pleasing 

fic/fig- to make, to do

I was beneficent, ready to help at a moment's notice.

charitable nature; an act of kindness; for charity rather than profit

bene- good, pleasing

The college received many gifts from benevolent alumni. 

the invocation of a blessing; benevolent religious utterances; blessing

bene- good, pleasing

dic- to say, to tell

The newly wedded couple received a benediction from their parents, a blessing that they wanted.

of a gentle disposition; lacking ill effect; gracious

bene- good, pleasing 

Our benign God is very gracious.

to assert the contrary of; deny the truth of; to offer disconfirmation

contra- opposite?

dic- to speak, to tell

I contradicted the truth. 

(What a lame sentence)

malevolent religious utterances; opposite of a benediction; curse; excration

mal- bad

dic- to say, to tell

The witch muttered a malediction, cursing the beautiful Princess.

desire to cause injury or distress to another; feeling hatred

mal- bad

The malicious girl kept pushing the other near the well.

to damage a reputation; evil in nature, influence, or effect; to speak evil

mal- bad

The scandal maligned the celebrity's perfect image.

working or productive of harm or evil; doing evil or harm

mal- bad

Maleficent in Sleeping Beauty was maleficent. She worked to harm Princess Rose.

ill-smelling; foul smelling; LITERALLY mal-odor

mal- bad

I took out the horrible smelling, malodorous trash can.

easily accomplished, handled or attained; simplistic; working with ease

fac- to make, to do

The facile task was easily done.

a place where things are manufactured

fac- to make, to do

The factory made lots of items. 

evildoer; one who commits an offense; someone responsible for a bad act

mal- bad

fac- to make, to do

The malefactor of the murder will be pressed with charges.

of a quality that falls short; lacking in something necessary

de- away from, the opposite of

fic/fig- to make, to do

My deficient sister can't do anything right.

well advanced in an area; having mastered a skill

pro- forward, support

fic- to make, to do

The professional artist was proficient in self-portraits.

yielding rich material; producing young or fruit abundantly; marked by abundant productivity

pro- forward, supporting

The tree was very prolific, yielding fruit abundantly.

a crude figure of a hated person; artifacts in human form

fig- to make, to do

In colonial times, effigies of tax collectors were burned!

inducing sleep or calmness; causing sleep or drowsiness; lethargic

fic- to make, to do

The soporific sleeping pill induced sleep.