English
fiveplex
From five + -plex.
Formed from five + -plex
Proto-Indo-European *pénkʷe
Proto-Germanic *fimf
Proto-West Germanic *fimf
Old English fīf
Middle English fyf
English five
Today it means
noun A building divided into five separate residences or commercial premises.
Language periods are conventional ranges, not dates for this word.
Etymograph / fiveplex