A good place to find the origins of these words is in Hans G. Schlegel
"General Microbiology" (7th. Edn., Cambridge University Press)
thermos (Greek) warm
psychros (Greek) cool or cold
philos (Greek) friend
mesos (Greek) the middle one
trophe (Greek) food
duro, durare (Latin) hardening, enduring
N.B. A good standard dictionary would also be a good place to find the
roots of these words.
Andrew
