chlorinator

Etymology tree
Proto-Indo-European *ǵʰelh₃-
Proto-Hellenic *kʰlōrós
Ancient Greek χλωρός (khlōrós)
Proto-Indo-European *-nós
Proto-Indo-European *-iHnos
Proto-Italic *-īnos
Latin -īnusder.
Old French -inbor.
Middle English -in
English -ine
English chlorine
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-tós
Proto-Indo-European *-eh₂tos
Proto-Italic *-ātos
Latin -ātuslbor.
English -ate
English chlorinate
English -or
English chlorinator
From chlorinate + -or.