irreproducible

Etymology tree
Proto-Indo-European *né
Proto-Indo-European *n̥-
Proto-Italic *n̥-
Latin in-
Latin ir-
English ir-
Proto-Italic *wre-
Latin re-der.
Old French re-bor.
Middle English re-
English re-
Proto-Indo-European *per-der.?
Proto-Indo-European *per-der.?
Proto-Indo-European *pér
Proto-Indo-European *-o
Proto-Indo-European *pró
Proto-Indo-European *pro-
Proto-Italic *pro-
Latin prō-
Proto-Indo-European *dewk-
Proto-Indo-European *déwkti
Proto-Italic *doukō
Latin dūcō
Latin prōdūcōder.
Middle English produce
English produce
English reproduce
Proto-Indo-European *-tḗr
Proto-Indo-European *-dʰlom
Proto-Indo-European *-dʰlis
Proto-Italic *-ðlis
Latin -bilis
Latin -ibilis
Old French -ibleder.
Middle English -ible
English -ible
English reproducible
English irreproducible
From ir- + reproducible.