CTRL+LEFT, CTRL+A
Mword
Moves the cursor to the beginning of the current word, or if the cursor is not in a word or at the beginning of the word, moves the cursor to the beginning of the previous word. A word is defined by the Word switch.
Meta Pword (F9 CTRL+RIGHT)
Moves the cursor to the immediate right of the previous word.
TrueCursor moved.
FalseCursor not moved; there are no more words in the file.
Pword