perhydroisoquinoline

Etymology tree
Proto-Indo-European *per-
Proto-Italic *per
Latin perbor.
Proto-Indo-European *per-der.
Proto-Italic *peri-
Latin per-bor.
English per-
Proto-Indo-European *wed-
Proto-Indo-European *-r̥
Proto-Indo-European *wódr̥
Proto-Hellenic *údōr
Ancient Greek ῡ̆̔́δωρ (hū̆́dōr)
Ancient Greek ῠ̔δρο- (hŭdro-)der.
English hydro-
Ancient Greek ῐ̓́σος (ĭ́sos)lbor.
English iso-
English quinine
English -oline
English quinoline
English isoquinoline
English perhydroisoquinoline
From per- + hydro- + isoquinoline.