-plex

1. a combining form meaning “having parts or units” of the number specified by the initial element, occurring originally in loanwords from Latin ( duplex; quadruplex ); recent English coinages ending in -plex, especially denoting structures with a given number of dwelling units, are probably in part new formations with this suffix and in part based on the noun complex: fourplex; eightplex; Cineplex; Metroplex.

Word History and Origins

Origin of -plex¹

< Latin -plex, -plic- (akin to plicāre to fold, bend, plectere to plait, braid; -fold ) + -s nominative singular ending

Example Sentences

Yup, it was right there, within that eight-plex apartment building, where the Ebola outbreak in Dallas refused to die.

From The Daily Beast