plait = plaît

According to the new French orthography, it should be "plait" :)
I know, however, that "plaît" would have also been correct.

L'Académie française recommande d'écrire "plait" sans accent circonflexe :

On écrit désormais mu (comme déjà su, tu, vu, lu), plait (comme déjà tait, fait), piqure, surpiqure (comme déjà morsure) traine, traitre, et leurs dérivés (comme déjà gaine, haine, faine), et ambigument, assidument, congrument, continument, crument, dument, goulument, incongrument, indument, nument (comme déjà absolument, éperdument, ingénument, résolument).

http://www.academie-francaise.f...he/regles.html

C'est incroyable ! ☺

@Alex,
Page non trouvée (c-à-d la page des règles).

I have found a link with the theme LES RECTIFICATIONS DE L'ORTHOGRAPHE from 1990 which looks quite official.
It looks like the above text cited by Alexmarcelo is contained.
If someone is interested he should read and tell me please what to do!! ☺ C'est incroyable !
To me it seems as if these new rules are ignored by the current dictionaries...
http://www.académie-française.f...tions_1990.pdf

Thank you very much, Tamy.
We'll have to study this.

BTW, it depends which current dictionaries, and when they were issued. I believe all my French dictionaries at home date before 1990. Well, most of them, at least. I did buy new dictionaries about a year ago, but I haven't checked whether they reflect the new orthography rules.

Here to examples of well-known online dictionaries:
PONS
http://de.pons.eu/dict/search/r...defr&in=&lf=de
LAROUSSE
http://www.larousse.com/de/wort...zosisch/please

Excellent, great links!
Danke sehr! :)

> Page non trouvée (c-à-d la page des règles).
C'est drôle...

http://www.academie-francaise.f...tions_1990.pdf
Voir page 13.

Oh, Tammy had already found it. :-)

Merci quand même ! :-)