Start the work.
You probably mean either commence or commerce.
to start, to commence
the call begins
The opposite of commence is desist, so in French that would be "Cesser".
Spring which begins...
commence, start, initiate, inaugurate, originate
the performance will commence at 8 pm sharp
Becoming exited about something - can not wait, restless and impatient to commence
La récré commence à quelle heure means "at what time does the recess / recration begins?"
Commencement actually is formed with a root word "commence" and a suffix "-ment". There is no prefix.
The ceremony will commence with a short prayer. The game will commence with the singing of The National Anthem.