Noah Webster
Transpose
TRANSPOSE, verb transitive transpo'ze.
1. To change the place or order of things by putting each in the place of the other; as, to transpose letters, words or propositions.
2. To put out of place.
3. In algebra, to bring any term of an equation over to the other side. Thus if a+b=c, and we make a=c-b, then b is said to be transposed.
4. In grammar, to change the natural order of words.
5. In music, to change the key.