1. Novem = Nine Latin November: ninth month in the calendar Novennial: nine-year period or celebration

2. Decem = ten Latin December: Tenth month in the old Roman calendar Decennial: Tenth anniversary or celebration

3. Centum = hundred Latin Cent: one hundreth of a dollar Century: a set of one hundred

4. Mille = thousand Latin Mile: a thousand paces Millennium: thousand- year period or anniversary

5. Pyro = fire Greek Pyrotechnics: fireworks Pyre: huge bonfire for burning bodies at ancient funerals (and even today in India)

6. Ignis = fire Latin Ignite: to set on fire Ignition: act of “firing up” or starting an engine.

7. Vulcanus = Vulcan-Roman god of fire Latin Volcano: A crack in the earth pouring out hot magma and hot gases Vulcanize: to treat raw rubber with heat and sulphur to make it harder and more durable

8. Hydros = water Greek Hydrogen: a gas which, when burned, produces water. Hydroplane: boat that glides on the surface of water.

9. Aqua = water Latin Aquarium: pond or tank of water where fish or water plants can live. Aquarius: a constellation called “water carrier”

10. Bonus = good Latin Bonus: something extra good Bon bon: beautifully decorated candy; a good “goody”

11. Helios = sun Greek Helium: light gas used in balloons Helios: sun god

12. Sol = sun Latin Solar:pertaining to the sun Solar system: the sun with the objects which revolve around it

13. Luna = moon Latin Lunar: of pretaining to the moon Lunatic: mad; affected by the moon

14. Dia = through, between, across, apart Greek Diabolical: shot through, possessed Diagonal: line between two non-adjacent corners in a figure of four or more sides.

15. Trans = across, over, beyond, through Latin Transport: carry across Transform: to change over to a different form.