1. Go to http://www.onelook.com
2. In the search box, enter heli* (including the asterisk).
3. Press the Enter key.
4. Find just that (heli-) in the list and click on that link.
5. Read definitions.
the greek base heli- means:
1 self
2 stomach
3 sun
4 mind
2 answers
http://www.merriam-webster.com/dictionary/heli