They're called hybrid words
Just a few favorites from their list of fifty...
Automobile - a wheeled passenger vehicle, from Greek _ (autos) "self" and Latin mobilis "moveable"
Biathlon - from the Latin bis meaning "twice" and the Greek _ (athlon) meaning "contest"
Claustrophobia - from the Latin claustrum meaning _confined space_ and Greek _ (phobos) meaning "fear"
Dysfunction - from the Greek _- (dys-) meaning "bad" and the Latin functio
Genocide - From the Greek _ (genos) meaning "race, people" and the Latin c_dere meaning "to kill"
Geostationary - From the Greek _ (g_) meaning "Earth" and the Latin stationarius, from statio, from stare meaning "to stand"
Hexadecimal - from Greek _ (hex), meaning "six", and Latin decimus meaning "tenth"
Metadata - from the Greek _ (meta) and the Latin data meaning "given" from dare
Monoculture - from the Greek _ (monos) meaning _one, single_ and the Latin cultura
Nonagon - from the Latin nonus meaning "ninth" and the Greek _ (g_nia) meaning "angle"
Quadriplegia - from the Latin quattuor meaning "four" and the Greek _ (pl_g_) "stroke", _ (pl_ssein) meaning "to strike";
Sociology - from the Latin socius, "comrade", and the Greek _ (logos) meaning "word", "reason", "discourse"
Television - from the Greek _ (t_le) meaning "far" and the Latin visio meaning "seeing"
... but I agree, "starivore" is right up (down?) there with "staycation". :-)
(All Greek characters replaced with '_' so Slashdot won't shit all over itself. Unicode? WTF is that? It's only 2015!)