noun, masculine/sis.tɛm/plural: systèmes
système is masculine in French.
system (various meanings); period
“le système duodécimal” — the duodecimal system
Inherited from Middle French systeme (first attested 1552), from Late Latin systēma, from Ancient Greek σύστημα (sústēma, “organised whole, body”), from σύν (sún, “with, together”) + ἵστημι (hístēmi, “to stand”).