39-50

• September – seventh month in the Roman calendar
• Septennial – (annus – year)
– seven year period or celebration
• Septangle – (angulus – corner) – a plane(flat) figure with seven sides and seven angles
• Septuagenarian –
(septuageni – seventy each) person who is 70 to 79
Latin

• October – eighth month of the Roman calendar
• Octopus – (pous, podos (Gr.)
– foot) – eight footed ocean creature
• Octogenarian – (octogeni –
80 each) – person between
80 and 89
• Octagon – (gonia(Gr.) – angle) – figure with eight sides and eight angles
• Octennial – (annus – year) – eight year period or celebration
Latin

• November – ninth month in the Roman calendar
• Novena – devotions for nine days in the Roman Catholic church
• Novennial (annus – year) – nine year period or celebration
• Novemdigitate – (digitus – finger) having nine fingers or toes
• Novendial – (dies – day) lasting nine days
Latin

• December – tenth month in the old Roman calendar
• Decennial – (annus – year) – tenth anniversary
• Decemdentate – (dens, dentis – tooth) – having ten teeth
• Decemfoliate – (folium – leaf) having ten leaves
• Decempedal – ( pes, pedis – foot) having ten feet
• Decade – ten year period
Latin

Latin
• Cent - one hundredth of a dollar
• Century – a set of one hundred
• Centurion – Roman military officer over 100 men
• Centimeter – (metron measure) – one hundredth of a meter
• Percent – (per – through) – number of parts in every hundred
• centigrade – (gradus – step, degree) – temperature scale with one hundred degrees between freezing and boiling

Latin
• Mile – a thousand paces(1 pace = 2 steps)
• Mill – one thousandth of a dollar
• Millimeter – (metron – measure) – one thousandth of a meter
• Millennium – (annus – year) thousand year period
• Millipede – (ped, pedis – foot) – thousand footed bug

• Pyrotechnics – (techne-work, skill) – fireworks
• Pyrotechnician - (techne-work, skill) – one who is skilled with fireworks
• Pyre – huge bonfire for burning bodies at ancient funerals (and even today in India)
• Pyromaniac – (mania-craze) – a crazy person who plays with fire
• Empyrean – (em-in) – the heavens – hone of the fiery sun
• Pyrometer – (metron – measure)
– instrument to measure very hot temperatures

Latin
• Igneous – (ous(E.)-full of) – pertaining to fire
• Ignite – to set fire to
• Ignition – act of firing up or starting an engine; setting anything afire

Latin
• Volcano – a crack in the earth pouring out hot magma and hot glass
• Volcanic – like or pertaining to volcanoes
• Vulcanize – to treat raw rubber with heat and sulphur to make it harder and more durable
• Vulcanite – hard rubber, treated with heat and sulphur
• Vulcanology – (logos-word, study) – the study of volcanoes

• Hydroplane – (L. planus-flat surface) – boat that glides on the surface of the water
• Hydrophobia – (phobos-fear) – fear of water
• Dehydrate – (de-down, away from) – take water away
• Hydrogen – (genos-origin) – a gas which, when burned, produces water
• Hydrophone – (phone-sound)
– instruments to hear under water
• Hydrology – (logos-study, word) study of water

Latin
• Aquarium – a pond or tank of water where fish or water plants can live
• Aqueduct – (duco, ductumlead) – a structure for bringing water to where it is needed
• Aquatics – pertaining to water usually sports
• Aquamarine – blue-green color of water
• Aquarius – a constellation call
Water Carrier
• Aquifer – (fero, latum-carry) a layer under the earth where water flows

Latin
• Bonus – something extra good
• Bon Bon(French) – beautifully decorated candy
• Bonny(Scottish) – good looking
• Boon – a good deed; favor
• Bounteous (-ous-full of) – plentiful good
• Bounty – plenty or reward
• Bonanza(Spanish-fair weather, prosperity) – rich find in a gold mine
• Debonaire(Fr.-of good disposition) – kindly, jaunty