transpose-words

transpose-words is an interactive compiled Lisp function in `simple.el'.

It is bound to M-t.

(transpose-words ARG)

Interchange words around point, leaving point at end of them.
With prefix arg ARG, effect is to take word before or around point
and drag it forward past ARG other words (backward if ARG negative).
If ARG is zero, the words around or after point and around or after mark
are interchanged.