Latin & Greek Stems and Prefixes

Directions: Read each set of words and guess the meaning of the bolded prefix.

Instrucciones: Lee cada grupo de palabras e intenta adivinar el significado del prefijo en negrita.

Instruções: Leia cada grupo de palavras e tente adivinhar o significado do prefixo em negrito.

지시 사항 : 각 단어 그룹을 읽고 굵게 표시된 접두사의 의미를 추측해 보세요.

Інструкції: Прочитайте кожну групу слів і спробуйте вгадати значення виділеного жирним префікса.

1. postpone, postwar, postgraduate, postscript
   
   post- after
   
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2. ultraviolet, ultrasound, ultramodern, ultrasonic
   
   ultra- beyond, extreme
   
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3. semicircle, semifinal, semiconscious, semiannual
   
   semi- half
   
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4. multicultural, multitask, multimillion, multicolored
   
   multi- many
   
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5. extraordinary, extracurricular, extraterrestrial, extralarge
   
   extra- outside, beyond
   
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6. retroactive, retrograde, retrospective, retrofit
   
   retro- backward
   
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Directions: Read each pair of sentences and guess the meaning of the bolded root.

Instrucciones: Lee cada par de oraciones e intenta adivinar el significado de la raíz en negrita.

Instruções: Leia cada par de frases e tente adivinhar o significado do radical em negrito.

지시 사항 : 각 문장 쌍을 읽고 굵게 표시된 어근의 의미를 추측해 보세요.

Інструкції: Прочитайте кожну пару речень і спробуйте вгадати значення виділеного жирним кореня.

1. Scientists discovered a new asteroid orbiting between Mars and Jupiter.
   The astronomer's favorite subject was stellar evolution — how stars are born and die.
   aster/astro/stellar: star
   
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2. He wrote an autobiography describing his own life story.
   The car's autopilot feature can drive itself on the highway.
   auto: self
   
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3. She rides her bicycle to work every morning.
   The water cycle repeats again and again, from rain to rivers to evaporation and back.
   cycle: circle, wheel
   
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4. The doctor recorded the patient's cause of death for the mortality report.
   In the horror movie, the character seemed completely immortal, unable to be killed.
   mort: death
   
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5. The nautical museum displayed old ships and sailing equipment.
   An astronaut must train for years before traveling to space.
   naut: sailor, ship
   
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6. The colors in the painting were incredibly vivid and full of life.
   Vitamins are nutrients that are essential for staying healthy and full of life.
   viv/vit: life
   
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Directions: Use this chart to check your answers and see more example words for each prefix and stem.

Instrucciones: Usa esta tabla para comprobar tus respuestas y ver más palabras de ejemplo para cada prefijo y raíz.

Instruções: Use esta tabela para conferir suas respostas e ver mais palavras de exemplo para cada prefixo e radical.

지시 사항 : 이 차트를 사용하여 답을 확인하고 각 접두사와 어근의 더 많은 예시 단어를 확인하세요.

Інструкції: Використовуйте цю таблицю, щоб перевірити свої відповіді та переглянути більше прикладів слів для кожного префікса й кореня.

Prefixes

Prefix		Meaning	Example Words
post-		after	postpone, postwar, postgraduate
ultra-		beyond, extreme	ultraviolet, ultrasound, ultramodern
semi-		half	semicircle, semifinal, semiconscious
multi-		many	multicultural, multitask, multimillion
extra-		outside, beyond	extraordinary, extracurricular, extraterrestrial
retro-		backward	retroactive, retrograde, retrospective

Stems

Stem		Meaning	Example Words
aster, astro, stellar		star	asteroid, astronaut, interstellar
auto		self	autobiography, autopilot, automatic
cycle		circle, wheel	bicycle, recycle, motorcycle
mort		death	mortality, immortal, postmortem
naut		sailor, ship	nautical, astronaut, aeronautics
viv, vit		life	vivid, vitamin, revive

Directions: Click a meaning tile, then click the empty box it belongs in. Each item checks itself automatically once both boxes are filled. Click a filled box to remove it.

Instrucciones: Haz clic en una ficha de significado y luego en la casilla vacía a la que pertenece. Cada elemento se revisa automáticamente una vez que ambas casillas están completas. Haz clic en una casilla completada para eliminarla.

Instruções: Clique em uma ficha de significado e depois na caixa vazia a que ela pertence. Cada item é verificado automaticamente assim que as duas caixas forem preenchidas. Clique em uma caixa preenchida para removê-la.

지시 사항 : 의미 타일을 클릭한 다음, 해당 타일이 속한 빈 상자를 클릭하세요. 두 상자가 모두 채워지면 자동으로 확인됩니다. 채워진 상자를 클릭하면 제거할 수 있습니다.

Інструкції: Натисніть на плитку значення, а потім на порожнє поле, до якого вона належить. Кожен елемент перевіряється автоматично, щойно обидва поля заповнено. Натисніть на заповнене поле, щоб видалити його.

Score:

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Directions: Choose the best meaning for each bold word.

Instrucciones: Elige el mejor significado para cada palabra en negrita.

Instruções: Escolha o melhor significado para cada palavra em negrito.

지시 사항 : 굵게 표시된 각 단어에 가장 알맞은 의미를 선택하세요.

Інструкції: Виберіть найкраще значення для кожного виділеного жирним слова.

1. Which picture shows a process that happens in a cycle?
   
   
   
   
2. Which picture shows something stellar, meaning related to stars?
   
   
   
   
3. If a meeting is postponed, it ______.
   is cancelled and will never happen
   is moved to a later time
   starts earlier than planned
   happens twice instead of once
   
   
4. Ultraviolet light is ______.
   beyond what the human eye can normally see
   only found underwater
   the same as ordinary sunlight
   used only in hospitals
   
   
5. A semifinal match in a tournament is ______.
   the very first match of the tournament
   the round just before the final
   a practice match that doesn't count
   the championship match itself
   
   
6. If you are multitasking, you ______.
   focus completely on one task at a time
   do several things at the same time
   take a long break between tasks
   ask someone else to finish your work
   
   
7. Something described as extraordinary is ______.
   completely normal and expected
   unusual, beyond what is normal
   slightly below average
   only found in textbooks
   
   
8. A retroactive pay raise ______.
   only applies starting next year
   applies back to an earlier date, not just from today
   is cancelled before it begins
   applies to new employees only
   
   
9. Someone full of vitality is ______.
   energetic and full of life
   tired and weak
   silent and withdrawn
   afraid of change
   
   
10. Which of these words contain the stem meaning "sailor, ship" (naut)?
    nautical
    astronautics
    nature
    aeronautics
    naughty
    national
    
    

Score:

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1. The prefix multi- is often combined with adjectives, like multicultural (multi + cultural). Can you think of three more examples like this?
2. The prefix retro- is often combined with adjectives, like retroactive (retro + active). Can you think of three more examples that use retro- in this way?
3. A mortgage is a loan people take out to buy a house, usually paid back over twenty or thirty years.
   What does "mort" mean here? How is "death" connected to something as ordinary as a house loan?
4. An asterisk is the small "*" symbol used to mark a footnote or a special note in a piece of writing.
   What does "aster" mean here? How is "star" connected to a small symbol used in writing?
5. An autopsy is a medical examination doctors perform on a body to find out how a person died.
   What does "auto" mean here? How is "self" connected to an examination that finds the true cause of death?

Directions: Play the audio clip and try to repeat what you hear. Click "Show" to see the text.

Instrucciones: Reproduce el clip de audio e intenta repetir lo que escuchas. Haga clic en "Show" para ver el texto.

Instruções: Reproduza o clipe de áudio e tente repetir o que você ouve. Clique em "Show" para ver o texto.

지시 사항 : 오디오 클립을 재생하고 들리는 내용을 반복해 보십시오. 텍스트를 보려면 "Show" 를 클릭하십시오.

Інструкції: Увімкніть аудіокліп і спробуйте повторити те, що чуєте. Натисніть "Show", щоб побачити текст.

Clip 1

The postmortem exam revealed the true cause of death.

Clip 2

The astronaut spent six months aboard the space station.

Clip 3

The actor's autobiography became a bestseller.

Clip 4

Our city asks residents to recycle glass, plastic, and paper.

Clip 5

In the legend, the hero drinks a potion and becomes immortal.

Clip 6

A semiautomatic machine still needs a person to start each cycle.

Clip 7

She takes a multivitamin every morning with breakfast.

Clip 8

The movie follows a crew on an interstellar journey to find a new home.

Clip 9

In retrospect, moving to a new city was the best decision she ever made.

Clip 10

Paramedics worked quickly to revive the unconscious swimmer.

Clip 11

Scientists discovered a new asteroid orbiting between Mars and Jupiter.

Clip 12

Vitamins are nutrients that are essential for staying healthy and full of life.