Sharks are afraid of other sharks, and sometimes humans if weaponed.

You are going to like this, it comes from the Anglo Saxon (Old English) waepn. Waepn also meant penis, as males, both human and animal, were referred to as waepned (weaponed).

Leo Braudy, From Chivalry to Terrorism, Vintage Books, New York, 2003. Page 5

It was used as a weaponed to knock out the other forces. but the people soon found out how to pervent it by ureinated on a cloth and covering their faces, so the gas would not come in and knock them out. (Hope that Hleps)

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern --APO-E-. That is, eight letter words with 3rd letter A and 4th letter P and 5th letter O and 7th letter E. In alphabetical order, they are:

weaponed

wrapover

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern W-A--N-D. That is, eight letter words with 1st letter W and 3rd letter A and 6th letter N and 8th letter D. In alphabetical order, they are:

weakened

weaponed

weazened