In all its forms, want has to do with the lack of having and the desire to have. You can want or desire something you’d like, or you can be in want of something you need.
The word want goes back to the 12th century and the Old Norse language, where vanta meant "to be deficient," or “in want.” If someone keeps bugging you, you might lose patience and ask, "What do you want?" If you are seeking employment, check the "want ads" or look for signs saying "Help Wanted." If you are a "wanted criminal," you might have trouble getting hired.