1. [mid-19C+] to look over, to inspect.
2. [mid-19C–1900s] orig. of a detective, to follow, to pursue; to spy on.
3. [1900s] to understand, to work out.
[mid-19C] (US Und.) to track down and arrest a criminal.
1. [mid-late 19C] to recognize.
2. [mid-19C–1940s] to survey, to assess.
3. [late 19C] to leave, to depart.
4. [late 19C] to dismiss.
5. [1910s–30s] to make jokes.
6. [1920s–40s] to inform, to explain.
7. [1930s] to ‘pump’ a person for information.