Old French word maintenant comes from Latin tentare, Latin manu, Latin manus tenere, and later Latin manuteneo ((Late Latin, Vulgar Latin) I support, maintain.)
tentare (Latin)
manu (Latin)
manus tenere (Latin)
manuteneo (Late Latin)
manuteneo (Latin)
(Late Latin, Vulgar Latin) I support, maintain.
maintenir (Old French)
To maintain (to keep the same).
maintenant (Old French)
Immediately; straight away.