thermoanaerobic

Etymology tree
Proto-Indo-European *gʷʰer-der.
Ancient Greek θερμός (thermós)der.
English thermo-
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Hellenic *ə-
Ancient Greek ᾰ̓- (ă-)
Ancient Greek ἀν- (an-)
Proto-Indo-European *h₂ews-
Proto-Indo-European *h₂ewsér
Proto-Hellenic *auhḗr
Ancient Greek ᾱ̓ήρ (āḗr)
Proto-Indo-European *gʷeyh₃-der.
Ancient Greek βῐ́ος (bĭ́os)
French anaérobie
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English anaerobic
English thermoanaerobic
From thermo- + anaerobic.