nonbacterial

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-
Ancient Greek βακτηρία (baktēría)
Proto-Indo-European *-yósder.
Ancient Greek -ῐος (-ĭos)?
Ancient Greek -ιον (-ion)
Ancient Greek βακτήριον (baktḗrion)bor.
New Latin bactēriabor.
English bacteria
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
English -al
English bacterial
English nonbacterial
From non- + bacterial.