sage

wise: prudent, cautious, and judicious; Chaste, modest, irreproachable in conduct; good, well-behaved, not naughty

“Alors, tu vas être sage pour maman dans le magasin ?” — Now, are you going to be good for mommy in the store?

Inherited from Middle French sage, from Old French sage, ultimately from the Classical Latin adjective sagāx.

a person who is prudent, cautious, and judicious; a sage (person)

Inherited from Middle French sage, from Old French sage, ultimately from the Classical Latin adjective sagāx.