- past participle of proove
2007, Rapra Technology, Pharmaceutical Polymers (Science), iSmithers, ISBN 9781847350176, page 63:
- The influence of the polymer on the application must be understood, established and continuously prooven!
2009, David Eugene Wilkins, quoting Law 17, Documents of Native American Political Development, Oxford University Press, ISBN 9780195327397, page 53:
- … and he can proove it was done accidently he shall not pay, if it can be prooven, that he did it intentionally he shall pay the owner.
2010, Amit Gupta, Resurrection of Tutankhamun (Sci-Fi), Glory Graphics, ISBN 9788184651980, page 39:
- Which has some base to solidfy our theory which is not been prooven yet.