a·miss 
(
ə-m
ĭs
)
adj.1. Out of proper order: What is amiss?
2. Not in perfect shape; faulty.
adv. In an improper, defective, unfortunate, or mistaken way.
[Middle English amis, probably from Old Norse ā mis, so as to miss : ā, on; see an- in the Appendix of Indo-European roots + mis, act of missing; see mei-1 in the Appendix of Indo-European roots.]