Scissor (noun)

1. A tool used for cutting thin material, consisting of two crossing blades attached at a pivot point in such a way that the blades slide across each other when the handles are closed.
2. One blade of a pair of scissors.

Origin:

From middle english sisoures, sisours, from old french cisoires, from vulgar latin *cīsōria, from late latin cīsōrium, from latin caesus, perfect passive participle of caedere (“to cut”).

Examples:

1. She used the scissors to cut the wrapping paper.
2. I can't find the other scissor.