hydrogenotrophic

Etymology tree
Proto-Indo-European *wed-
Proto-Indo-European *-r̥
Proto-Indo-European *wódr̥
Proto-Hellenic *údōr
Ancient Greek ῡ̆̔́δωρ (hū̆́dōr)
Ancient Greek ὑδρο- (hudro-)lbor.
French hydro-
Proto-Indo-European *ǵenh₁-
Proto-Indo-European *-os
Proto-Indo-European *ǵénh₁os
Proto-Hellenic *génos
Ancient Greek γένος (génos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -γενής (-genḗs)lbor.
French -gène
French hydrogènebor.
English hydrogen
Ancient Greek -ο- (-o-)der.
Latin -o-bor.
English -o-
Proto-Hellenic *tʰrépʰō
Ancient Greek τρέφω (tréphō)
Ancient Greek -ᾱ (-ā)
Ancient Greek -η (-ē)
Ancient Greek τροφή (trophḗ)
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ικός (-ikós)
Ancient Greek τροφῐκός (trophĭkós)der.
English -trophic
English hydrogenotrophic
From hydrogen + -o- + -trophic.