In Lesson 5 of Chapter 3 from Vocabulary from Classical Roots Book A, Grade 4 students learn eleven vocabulary words rooted in Latin and Greek, including microbe, microcosm, minuscule, minutia, attenuate, tenuous, satiate, comply, implement, replete, and expletive. The lesson traces each word back to its classical root, such as mikros meaning small, tenuis meaning thin, and plenus meaning full, helping students understand how ancient languages shape modern English. This foundation in etymology builds both vocabulary depth and word-recognition skills across reading and writing contexts.
Section 1
The Root of Smallness: MIKROS
Let's start small! These words come from the Greek root MIKROS, meaning "small."
| microbe (n.) | microcosm (n.) |
Section 2
Less is More: The Roots MINUO & MINUS
Think smaller! These words are derived from the Latin roots MINUO ("to lessen") and MINUS ("less"). They focus on things that are tiny, detailed, or reduced in scale.
| Word | Definition | Word Origin |
|---|---|---|
| minuscule (adj.) | Extremely small; tiny. | From minus (less). It describes something so small it seems to have been "lessened" to the extreme. (Note the 'u' after 'min'—it follows 'minus'!) |
| minutia (n.) | A small, precise, or trivial detail. | From minuo (to lessen). It refers to the "lesser" or smallest pieces of a larger topic. |
| minutiae (pl. n.) | The small, precise, or trivial details of something. | The plural form of minutia. Think of these as the "tiny bits" that make up the whole. |
Section 3
Getting Thin: The Roots TENUO & TENUIS
Here are two words that get to the point, thinly! They come from the Latin roots TENUO ("to make thin") and TENUIS ("thin").
| attenuate (v.) | tenuous (adj.) |
Section 4
Enough is Enough: The Root SATIS
Feeling full? This word comes from the Latin root SATIS, meaning "enough."
| satiate (v.) |
Section 5
Filling It Up: The Roots IMPLEO & PLENUS
Let's fill in the blanks with these words from the Latin roots IMPLEO ("to fill") and PLENUS ("full").
| comply (v.) | implement (v./n.) | replete (adj.) | expletive (n.) |
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Section 1
The Root of Smallness: MIKROS
Let's start small! These words come from the Greek root MIKROS, meaning "small."
| microbe (n.) | microcosm (n.) |
Section 2
Less is More: The Roots MINUO & MINUS
Think smaller! These words are derived from the Latin roots MINUO ("to lessen") and MINUS ("less"). They focus on things that are tiny, detailed, or reduced in scale.
| Word | Definition | Word Origin |
|---|---|---|
| minuscule (adj.) | Extremely small; tiny. | From minus (less). It describes something so small it seems to have been "lessened" to the extreme. (Note the 'u' after 'min'—it follows 'minus'!) |
| minutia (n.) | A small, precise, or trivial detail. | From minuo (to lessen). It refers to the "lesser" or smallest pieces of a larger topic. |
| minutiae (pl. n.) | The small, precise, or trivial details of something. | The plural form of minutia. Think of these as the "tiny bits" that make up the whole. |
Section 3
Getting Thin: The Roots TENUO & TENUIS
Here are two words that get to the point, thinly! They come from the Latin roots TENUO ("to make thin") and TENUIS ("thin").
| attenuate (v.) | tenuous (adj.) |
Section 4
Enough is Enough: The Root SATIS
Feeling full? This word comes from the Latin root SATIS, meaning "enough."
| satiate (v.) |
Section 5
Filling It Up: The Roots IMPLEO & PLENUS
Let's fill in the blanks with these words from the Latin roots IMPLEO ("to fill") and PLENUS ("full").
| comply (v.) | implement (v./n.) | replete (adj.) | expletive (n.) |
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter