nonestrogen

Etymology tree
Proto-Indo-European *né
Proto-Germanic *ne
Proto-Indo-European *ís?
Proto-Indo-European *h₁óynos
Proto-Germanic *ainaz
Proto-Germanic *nainaz
Proto-West Germanic *nain
Old English nān
Middle English non
▲
Old English nān
Old English nān-
Middle English non-
English non-
Proto-Indo-European *h₁eysh₂-der.
Ancient Greek οἶστρος (oîstros)der.
Latin oestrusbor.
English estrus
Ancient Greek -ο- (-o-)der.
Latin -o-bor.
English -o-
English estro-
Proto-Indo-European *ǵenh₁-
Proto-Indo-European *-os
Proto-Indo-European *ǵénh₁os
Proto-Hellenic *génos
Ancient Greek γένος (génos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -γενής (-genḗs)lbor.
French -gènebor.
English -gen
English estrogen
English nonestrogen
From non- + estrogen.