err 
(ĕr, ûr)
(ĕr, ûr)intr.v. erred, err·ing, errs
1. To make an error or misjudgment: I erred in turning onto the dead-end street.
2. To commit an act that is wrong; do wrong.
3. Archaic To stray.
[Middle English erren, from Old French errer, from Latin errāre, to wander; see ers- in the Appendix of Indo-European roots.]