Merriam-Webster's Collegiate® Dictionary, 11th Edition
COMMUTE
I. verb (commuted; commuting) see: mutable
Date: 15th century
transitive verb
1. change , alter , to give in exchange for another ; exchange , to convert (as a payment) into another form, to change (a penalty) to another less severe , commutate , intransitive verb make up , compensate , to pay in gross, to travel back and forth regularly (as between a suburb and a city), to yield the same mathematical result regardless of order, commutable adjective
II. noun
Date: 1954
an act or an instance of commuting, the distance covered in commuting