Punctual
PUNC'TUAL, adjective [Latin punctum, a point.]
1. Consisting in a point; as this punctual spot. [Little Used.]
2. Exact; observant of nice points; punctilious, particularly in observing time, appointments or promises. It is honorable in a man to be punctual to appointments, or to appointed hours; it is just to be punctual in paying debts.
3. Exact; as a punctual correspondence between a prediction and an event.
4. Done at the exact time; as punctual payment.