trimethylarsine

Etymology tree
Proto-Indo-European *tréyes
Proto-Indo-European *tri-
Proto-Italic *tri-
Latin tri-der.
English tri-
Proto-Indo-European *médʰu
Proto-Hellenic *métʰu
Ancient Greek μέθυ (méthu)
Proto-Indo-European *swel-der.?
Ancient Greek ῡ̔́λη (hū́lē)der.
German -yl
German Methylbor.
English methyl
English trimethyl
Proto-Indo-European *ǵʰelh₃-
Proto-Indo-European *ǵʰl̥h₃enyomder.
Proto-Indo-Iranian *ȷ́ʰr̥Hanyam
Proto-Iranian *jr̥Hanyam
Old Median *zaranyam
Old Median *kā
Old Median *zaraniyakāder.
Middle Persian *zarnīkbor.
Classical Syriac ܙܪܢܝܟܐ (zarnīḵā)der.
Arabic الزَرْنِيخ (az-zarnīḵ)bor.
Byzantine Greek ἀρσενικόν (arsenikón)der.
Latin arsenicumder.
Middle French arsenicbor.
Middle English arsenik
English arsenic
Proto-Indo-European *-nós
Proto-Indo-European *-iHnos
Proto-Italic *-īnos
Latin -īnusder.
Old French -inbor.
Middle English -in
English -ine
English arsine
English trimethylarsine
From trimethyl + arsine.