bronchoconstrictive

Etymology tree
Ancient Greek βρόγχος (brónkhos)der.
English broncho-
Proto-Indo-European *ḱe?
Proto-Indo-European *ḱóm
Proto-Italic *kom
Proto-Italic *kom-
Latin cōn-
Proto-Indo-European *strengʰ-der.
Proto-Indo-European *streyg-der.
Latin stringō
Latin cōnstringō
Latin cōnstrictusbor.
English constrict
Proto-Indo-European *-wós
Proto-Indo-European *-iHwósder.
Latin -īvus
Old French -ifbor.
Middle English -yf
English -ive
English constrictive
English bronchoconstrictive
From broncho- + constrictive.