1
general::
1. Approach, as in As evening draws on, we'll make our way back to the house. [First half of 1500s] 2. Put on a piece of clothing, as in She drew on her gloves. [Early 1700s] 3. Also, draw upon. Make use of something or someone. For example, This dictionary draws on many different sources, or The chair man was good at drawing upon the various members for their expertise. [Mid-1600s]
American Heritage Idioms
2
general::
Phrase(s): draw on someone or something [and] draw upon someone or something
to use someone or something in some beneficial way; to extract from a resource, reserve, etc. • I may have to draw on your advice in order to complete this project. • If there is some way you can draw on me to your advantage, let me know. • By the end of the contest I had drawn upon all the energy I had.
McGrawhill's American Idioms And Phrasal Verbs