Deca=10
Decagon
Decade
Decagram
Nona=9
Nonagon
Nonagram
Nonagenerian
Octo=8
Octogan
Octopus
October
Hept= Seven
Heptagon
Hepthalon
Heptane
hex=six
hexagon
cachexia
cachexic
Penta=Five
Pentagon
Pentagram
Pentateuch
Tetra=Four
Tetracycline
Tetragon
Tetrapod
mono=one
Monad
Monandry
Monogyny
Neon-Ne-10
Calcium-Ca-20

Fluorine-F-9
Potassium-K-19

Oxygen-O-8
Argon-Ar-18

Nitrogen-N-7
Chlorine-Cl-17

Carbon-C-6
Sulfur-S-16

Boron-B-5
Phosphorous-P-15

Lithium-Li-3
Aluminum-Al-13

Magnesium-Mg-12
Helium-He-2

Hydrogen-H-1
Sodium-Na-11

Lith=Stone
Abyssolith
Acaustobiolith
Acrolith
lact=milk
Lactometer
Lactose
Lactic Acid
kilo=thousand
Kilometer
Kilogram
Kilobyte
Ject=throw
Eject
Reject
Injection
iso=same
Chronoisothermal
Geoisotherm
Isobar
Inter=between
Interaction
Interaxillary
Intercede
il=not
Until
Illegible
Illiterate
hetro=different
heterodox
heteroatom
heterodyne
Homo=Same
homogamy
homogamous
homogeneously
Fra=Break
Fragile
Fracture
Fray
fac=make
Manufacture
Factory
Facilitate
Eco=House
Economy
Ecology
Ecosystem
Duc=lead
Induction
Reduce
Seduce
Dict=say/speak
Dictionary
Dictate
verdict
Chron=Time
Chronic
Chronometry
Chronophobia
Chloro=green
Chloroplast
Chlorophyll
Chloroform
cand=glow
candle
incandescent
candlabra