Learn on PengiVocabulary from Latin and Greek Roots, Level XIUnit 4 ~ Unit 6

Ch 2.1: Unit 4

In this Grade 8 vocabulary lesson from Vocabulary from Latin and Greek Roots, Level XI, students explore words derived from four Latin roots: PECCARE (to sin), PEJOR (worse), MALUS (bad), and NEGARE (to deny). Students learn the precise meanings and usage of terms such as peccadillo, impeccable, pejorative, malign, malaise, negligent, and negate, along with their synonyms and antonyms. The lesson also covers how etymology connects related words like impair and renegade to their Latin origins.

Section 1

Root: pecc — to sin, to be flawed

This group of words comes from the Latin root peccare, meaning "to sin, to be flawed."

Key Words

WordDefinition
peccadillo (n.)A small sin or fault
impeccable (adj.)Having no flaws
peccant (adj.)Violating a moral law; sinful

Example Usage

  • My father is usually tolerant of my brother's behavior, but he will not tolerate any peccant actions.
  • The chef's kitchen was impeccable; every surface was polished and every utensil was in its place.

Word Spark

  • peccadillo: Think of your friend who is always a few minutes late to everything.
  • impeccable: Like a drawing where every single line is perfectly straight and clean.

Section 2

Roots: pej, pair — worse

These words originate from the Latin root pejor, meaning "worse."

Key Words

WordDefinition
pejorative (adj.)Negative and critical; insulting
impair (v.)To cause to diminish, as in strength, value, or quality

Example Usage

  • The coach worried that the player's injury would impair his performance in the championship game.
  • I found the critic's use of pejorative language to be unprofessional and biased.

Word Spark

  • pejorative: Like calling someone's creative idea "silly" instead of giving helpful feedback.
  • impair: Think of how smudges on your glasses make it harder to see clearly.

Section 3

Root: mal — bad

This set of words is derived from the Latin root malus, which means "bad."

Key Words

WordDefinition
malign (v.)To speak of maliciously; insult
malinger (v.)To pretend to be sick in order to avoid something
malaise (n.)A sense of unease; depression

Example Usage

  • A general malaise fell over the team after their third consecutive loss.
  • The candidate lost the election because his opponent successfully maligned him in a series of ads.

Word Spark

  • malinger: Think of a student who suddenly gets a "headache" when it's their turn to clean the classroom.
  • malaise: Like the quiet, heavy feeling in the air after a big argument has ended.

Section 4

Root: neg — to deny, to neglect

These words are built on the Latin roots negare, "to deny," and neglegere, "to neglect."

Key Words

WordDefinition
negligent (adj.)Not properly attentive
negligible (adj.)Unimportant; insignificant
negate (v.)To cancel the effect of; nullify

Example Usage

  • The pet owner was negligent for not taking his sick dog to the veterinarian.
  • A single poor grade will not negate an entire year of hard work and good test scores.

Word Spark

  • negligent: Like a babysitter who spends the whole time looking at their phone instead of the kids.
  • negligible: Think of one typo in a 20-page essay; it's there, but it barely matters.

Book overview

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  1. Lesson 1Current

    Ch 2.1: Unit 4

  2. Lesson 2

    Ch 2.2: Unit 5

  3. Lesson 3

    Ch 2.3: Unit 6

Lesson overview

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Section 1

Root: pecc — to sin, to be flawed

This group of words comes from the Latin root peccare, meaning "to sin, to be flawed."

Key Words

WordDefinition
peccadillo (n.)A small sin or fault
impeccable (adj.)Having no flaws
peccant (adj.)Violating a moral law; sinful

Example Usage

  • My father is usually tolerant of my brother's behavior, but he will not tolerate any peccant actions.
  • The chef's kitchen was impeccable; every surface was polished and every utensil was in its place.

Word Spark

  • peccadillo: Think of your friend who is always a few minutes late to everything.
  • impeccable: Like a drawing where every single line is perfectly straight and clean.

Section 2

Roots: pej, pair — worse

These words originate from the Latin root pejor, meaning "worse."

Key Words

WordDefinition
pejorative (adj.)Negative and critical; insulting
impair (v.)To cause to diminish, as in strength, value, or quality

Example Usage

  • The coach worried that the player's injury would impair his performance in the championship game.
  • I found the critic's use of pejorative language to be unprofessional and biased.

Word Spark

  • pejorative: Like calling someone's creative idea "silly" instead of giving helpful feedback.
  • impair: Think of how smudges on your glasses make it harder to see clearly.

Section 3

Root: mal — bad

This set of words is derived from the Latin root malus, which means "bad."

Key Words

WordDefinition
malign (v.)To speak of maliciously; insult
malinger (v.)To pretend to be sick in order to avoid something
malaise (n.)A sense of unease; depression

Example Usage

  • A general malaise fell over the team after their third consecutive loss.
  • The candidate lost the election because his opponent successfully maligned him in a series of ads.

Word Spark

  • malinger: Think of a student who suddenly gets a "headache" when it's their turn to clean the classroom.
  • malaise: Like the quiet, heavy feeling in the air after a big argument has ended.

Section 4

Root: neg — to deny, to neglect

These words are built on the Latin roots negare, "to deny," and neglegere, "to neglect."

Key Words

WordDefinition
negligent (adj.)Not properly attentive
negligible (adj.)Unimportant; insignificant
negate (v.)To cancel the effect of; nullify

Example Usage

  • The pet owner was negligent for not taking his sick dog to the veterinarian.
  • A single poor grade will not negate an entire year of hard work and good test scores.

Word Spark

  • negligent: Like a babysitter who spends the whole time looking at their phone instead of the kids.
  • negligible: Think of one typo in a 20-page essay; it's there, but it barely matters.

Book overview

Jump across lessons in the current chapter without opening the full course modal.

  1. Lesson 1Current

    Ch 2.1: Unit 4

  2. Lesson 2

    Ch 2.2: Unit 5

  3. Lesson 3

    Ch 2.3: Unit 6