trace

ot noun

1. An act of tracing. Your cell phone company can put a trace on your line.
2. A residue of some substance or material. There are traces of chocolate around your lips.
3. A very small amount. All of our chocolates may contain traces of nuts.
4. An enquiry sent out for a missing article, such as a letter or an express package.

fe’l verb

1. To draw or sketch lightly or with care. He carefully traced the outlines of the old building before him.
2. To follow the trail of.
3. To follow the history of.
4. To copy onto a sheet of paper superimposed over the original, by drawing over its lines.