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

Ch 2.3: Unit 6

In this Grade 8 vocabulary lesson from Vocabulary from Latin and Greek Roots, Level XI (Unit 6), students learn words derived from the Latin roots SOMN, SOPOR, LANG, VIGIL, and QUIES, including terms such as somnolent, soporific, languid, languor, vigilant, vigilante, acquiesce, and requiem. Students explore the original Latin meanings behind each root and practice using the vocabulary in context through sentence-completion exercises. The lesson builds both word recognition and etymological reasoning skills essential for advanced reading and writing.

Section 1

Root: SOMN — sleep

This group comes from the root SOMN, meaning 'sleep'.

Key Words

WordDefinition
somnolent (adj.)Drowsy; sleepy

Example Usage

  • In her somnolent state after the long flight, Maria found it hard to follow the tour guide's energetic speech.

Word Spark

  • somnolent: Like trying to keep your eyes open during a warm, boring lecture right after lunch.

Section 2

Root: SOPOR — sleep

This group comes from the root SOPOR, meaning 'sleep'.

Key Words

WordDefinition
soporific (adj.)Causing sleep or fatigue
sopor (n.)Sleep; drowsiness

Example Usage

  • The film's plot was so slow and predictable that many in the audience found it soporific.
  • The allergy medication induced a deep sopor, from which he was difficult to awaken.

Word Spark

  • soporific: Think of the low hum of a car on a long highway trip, making everyone in the back seat doze off.

Section 3

Root: LANG — to be weak, be faint

This group comes from the root LANG, meaning 'to be weak, be faint'.

Key Words

WordDefinition
languid (adj.)Lacking energy; weak
languish (v.)To waste away
languor (n.)Lack of physical or mental energy

Example Usage

  • She gave a languid wave of her hand, too tired from the heat to move more.
  • Without proper care and sunlight, the plant began to languish in the dark corner.

Word Spark

  • languor: Like the feeling on a hot, humid summer afternoon when you just don't want to move at all.
  • languish: Imagine a forgotten toy gathering dust in an attic, losing its color and cheer over the years.

Section 4

Root: VIGIL — watchful

This group comes from the root VIGIL, meaning 'watchful'.

Key Words

WordDefinition
vigilant (adj.)On the alert; watchful
vigilante (n.)Someone who takes law enforcement into his or her own hands

Example Usage

  • The security guard remained vigilant throughout the night, patrolling the empty warehouse.
  • When the town's sheriff failed to act, a vigilante known only as 'The Shadow' began to patrol the streets.

Word Spark

  • vigilant: Think of a cat staring intently at a mouse hole, not moving a muscle, ready to pounce.

Section 5

Root: QUIES — to rest

This group comes from the root QUIES, meaning 'to rest'.

Key Words

WordDefinition
acquiesce (v.)To give in
requiem (n.)A song or religious service for the dead or lost
quittance (n.)A repayment; compensation

Example Usage

  • After an hour of debating, my dad finally acquiesced and let us get a puppy.
  • The orchestra performed a solemn requiem for the victims of the tragedy.

Word Spark

  • acquiesce: Like finally agreeing to do the dishes after your mom has asked you five times.
  • quittance: Think of finally receiving your allowance after completing all your weekly chores as promised.

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Unit 4 ~ Unit 6

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    Ch 2.1: Unit 4

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  2. Lesson 2

    Ch 2.2: Unit 5

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Section 1

Root: SOMN — sleep

This group comes from the root SOMN, meaning 'sleep'.

Key Words

WordDefinition
somnolent (adj.)Drowsy; sleepy

Example Usage

  • In her somnolent state after the long flight, Maria found it hard to follow the tour guide's energetic speech.

Word Spark

  • somnolent: Like trying to keep your eyes open during a warm, boring lecture right after lunch.

Section 2

Root: SOPOR — sleep

This group comes from the root SOPOR, meaning 'sleep'.

Key Words

WordDefinition
soporific (adj.)Causing sleep or fatigue
sopor (n.)Sleep; drowsiness

Example Usage

  • The film's plot was so slow and predictable that many in the audience found it soporific.
  • The allergy medication induced a deep sopor, from which he was difficult to awaken.

Word Spark

  • soporific: Think of the low hum of a car on a long highway trip, making everyone in the back seat doze off.

Section 3

Root: LANG — to be weak, be faint

This group comes from the root LANG, meaning 'to be weak, be faint'.

Key Words

WordDefinition
languid (adj.)Lacking energy; weak
languish (v.)To waste away
languor (n.)Lack of physical or mental energy

Example Usage

  • She gave a languid wave of her hand, too tired from the heat to move more.
  • Without proper care and sunlight, the plant began to languish in the dark corner.

Word Spark

  • languor: Like the feeling on a hot, humid summer afternoon when you just don't want to move at all.
  • languish: Imagine a forgotten toy gathering dust in an attic, losing its color and cheer over the years.

Section 4

Root: VIGIL — watchful

This group comes from the root VIGIL, meaning 'watchful'.

Key Words

WordDefinition
vigilant (adj.)On the alert; watchful
vigilante (n.)Someone who takes law enforcement into his or her own hands

Example Usage

  • The security guard remained vigilant throughout the night, patrolling the empty warehouse.
  • When the town's sheriff failed to act, a vigilante known only as 'The Shadow' began to patrol the streets.

Word Spark

  • vigilant: Think of a cat staring intently at a mouse hole, not moving a muscle, ready to pounce.

Section 5

Root: QUIES — to rest

This group comes from the root QUIES, meaning 'to rest'.

Key Words

WordDefinition
acquiesce (v.)To give in
requiem (n.)A song or religious service for the dead or lost
quittance (n.)A repayment; compensation

Example Usage

  • After an hour of debating, my dad finally acquiesced and let us get a puppy.
  • The orchestra performed a solemn requiem for the victims of the tragedy.

Word Spark

  • acquiesce: Like finally agreeing to do the dishes after your mom has asked you five times.
  • quittance: Think of finally receiving your allowance after completing all your weekly chores as promised.

Book overview

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Continue this chapter

Unit 4 ~ Unit 6

  1. Lesson 1

    Ch 2.1: Unit 4

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  2. Lesson 2

    Ch 2.2: Unit 5

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  3. Lesson 3Current

    Ch 2.3: Unit 6

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