Word part · Greek root
Poly root words: meaning and 14 examples
In short
The Greek root poly (from Greek) means "many". Words with it include polymorph, polymorphic, polygraph, polygraphs, polysyllable and polysyllables. Its final o lets it join the next Greek part with no extra letter: polygraph, polymorph.
- Part
- poly
- Meaning
- many
- Origin
- Greek
- Words listed
- 14
Its final o lets it join the next Greek part with no extra letter: polygraph, polymorph. It is the opposite of mono.
Words with the Greek root poly
The list runs from shorter, common words to longer ones. The bands are a rough guide built from syllable count and how common each word is in our word list, not a grade-level standard. Read each word, then its word sum.
Colors:prefixroot or basesuffix
Next: longer words (about grades 5 and 6)
| Word | Word sum | What it means |
|---|---|---|
| polymorph | poly (root or base)+morph (root or base)→polymorph | something that can take many shapes |
| polygraph | poly (root or base)+graph (root or base)→polygraph | a machine that records many body signals at once |
| polygraphs | poly (root or base)+graph (root or base)+s (suffix)→polygraphs | more than one polygraph |
| polyester | poly (root or base)+ester (root or base)→polyester | a cloth made from a plastic with many linked parts |
| polymath | poly (root or base)+math (root or base)→polymath | a person who knows a lot about many subjects |
More words: polygon, polygons
Stretch: long or less common words (about grades 7 and 8)
| Word | Word sum | What it means |
|---|---|---|
| polymorphic | poly (root or base)+morph (root or base)+ic (suffix)→polymorphic | able to take many shapes |
| polysyllable | poly (root or base)+syllable (root or base)→polysyllable | a word with many syllables |
| polysyllables | poly (root or base)+syllable (root or base)+s (suffix)→polysyllables | more than one polysyllable |
More words: polygonal, polyhedron, polynomial, polynomials
How do you teach the root poly?
Teach poly next to mono so the student has a pair: one and many. Math class is the best place for it. A polygon is a shape with many angles, a polynomial has many terms, and a polyhedron is a solid with many faces. Ask the student to draw a polygon and count its sides. Then show polysyllable, which is handy in reading class, and ask for an example, such as caterpillar.
A quick routine
Write mono and poly on two cards. Say, "Mono means one. Poly means many. I'll say a word and you hold up a card." Read monorail, polygon, monologue, polysyllable, monotone and polymath. After each, the student explains the choice in a short sentence, such as "poly, because a polygon has many sides." Close by dictating polygon and polyester.
What do students mix up with poly?
Monopoly looks as if it should mean one and many at once, and students puzzle over it. The poly in monopoly comes from a different Greek word that means sell, so a monopoly is one seller. Polite is another look-alike; it comes from a Latin word meaning polished. The y in poly is a vowel, a sign of Greek spelling, so have the student say the parts slowly before blending.
For the sounds inside these words, see the phonics word lists. Routines that fit: meanings of prefixes and suffixes, circle the parts, read the base and flexible routine for big words.
Questions people ask
What does the root poly mean?
Poly means "many". It is a Greek root. Its final o lets it join the next Greek part with no extra letter: polygraph, polymorph. It is the opposite of mono.
What are some words with the root poly?
Start with polymorph, polygraph, polygraphs and polyester. Then move to polymorphic and polysyllable. This page lists 14 words in all, most with a word sum that shows the parts.
Is monopoly from the root poly?
No, even though it has the same letters. The poly in monopoly comes from a Greek word meaning sell, so a monopoly is a single seller with no competition. It still belongs with mono, which means one.
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