n. pl. al·i·bis
a. A form of defense whereby a defendant attempts to prove that they were elsewhere when the crime in question was committed.
b. The fact of having been elsewhere when a crime in question was committed.
2. An explanation offered to avoid blame or justify action; an excuse.
v. al·i·bied, al·i·bi·ing, al·i·bis
To make an excuse for oneself.
To make an excuse for (another).
[Latin, elsewhere, from alius, other (on the model of ibi, there) ; see al-1 in the Appendix of Indo-European roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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