trace

(transitive) To follow the trail of.

To follow the history of.

(transitive) To draw or sketch lightly or with care.

(transitive) To copy onto a sheet of paper superimposed over the original, by drawing over its lines.

(transitive, obsolete) To copy; to imitate.

(intransitive, obsolete) To walk; to go; to travel.

(transitive, obsolete) To walk over; to pass through; to traverse.

(computing, transitive) To follow the execution of the program by making it to stop after every instruction, or by making it print a message after every step.