Etymology of the English word thermosphere
the English word
thermosphereusing the English prefix
thermo-derived from the Greek word
thermos, θέρμος, ϑερμός, ϑέρμος
derived from the Proto-Indo-European root
*gʷher-derived from the English word
spherederived from the Late Latin word
sphera (globe, sphere, orb)
derived from the Latin word
sphaera (globe, sphere, orb)
derived from the Greek word
sphaira, σφαῖρα, σϕαῖρα (ball)
unkown origins
Usage
Word found in Modern English