n.
Function: noun
Date: 14th century
1 : an act or instance of purchasing
2 : something obtained especially for a price in money or its equivalent
3 a (1) : a mechanical hold or advantage applied to the raising or moving of heavy bodies (2) : an apparatus or device by which advantage is gained b (1) : an advantage (as a firm hold or position) used in applying one's power <clutching the steering wheel for more purchase ― Barry Crump> (2) : a means of exerting power