a stipulatory clause

The Carmelite enjoyed the general amazement, and he told father and son how the secret of this substance had been revealed to him by an Arab; it was medicine far more powerful than the one Christian spagyrists called unguentum armarium.

But the Agricultural Extension Services in several southern states have listed dichondra — a member of the bindweed family — under weeds, where it appears by the name ponyfoot.

I'll meet you at the foot of the stairs.