At the countretaille at English => English (Websters 1913) Of Explained:
Countretaille \Coun"tre*taille`\ (koun"t?r-t?l`), n. [F.
contretaille; contre (L. contra) + taille cut. See {Tally}.]
A counter tally; correspondence (in sound). [Obs.]
{At the countretaille}, in return. --Chaucer.