
Latin, meaning: to wander, stray, rove / be mistaken, err, go astray.
Found on
http://archives.nd.edu/eee.htm
[crater] Erro is a lunar crater that lies beyond the eastern limb of the Moon, on the far side as seen from the Earth. It lies along the eastern fringes of the uneven plain that joins Mare Marginis to the northwest with Mare Smythii to the west-southwest. This part of the surface is sometimes brought into sight of observers on the Earth due...
Found on
http://en.wikipedia.org/wiki/Erro_(crater)

to wander, stray, rove / be mistaken, err, go astray.
Found on
https://www.math.ubc.ca/~cass/frivs/latin/latin-dict-full.html
No exact match found.