photoconsumptive

Etymology tree Proto-Indo-European *bʰeh₂- Proto-Indo-European *bʰéh₂os Proto-Hellenic *pʰáwos Ancient Greek φᾰ́ος (phắos) Ancient Greek φῶς (phôs) Ancient Greek φωτο- (phōto-)der. English photo- Proto-Indo-European *ḱe Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub- Proto-Indo-European *nem-? Proto-Indo-European *h₁em-der. Proto-Italic *emō Latin emō Latin sūmō Latin cōnsūmō Latin cōnsūmptus Proto-Indo-European *-wósder. Latin -īvus Old French -ifbor. Middle English -ive Middle English consumptive English consumptive English photoconsumptive From photo- + consumptive.

来源：wiktionary