Looking up...
Certes, le projet coûte cher.
Admittedly, the project costs a lot.
admittedly, used to concede a point elegantly
Certes, il a raison sur ce détail.
Admittedly, he is right on that detail.
Certes, la tâche est difficile, mais possible.
Admittedly, the task is hard but possible.
certainly or of course in formal reply
Certes, nous viendrons demain.
Certainly, we will come tomorrow.
From Old French certes, certainly, from Latin certas, sure things.