Dic: forge (as a verb intransitive)

forge(2):

1. To advance gradually but steadily: forged ahead through throngs of shoppers.
2. To advance with an abrupt increase of speed: forged into first place with seconds to go.

........ The American Heritage

forge(2):

1. to move at a steady pace.
2. forge ahead: to increase speed or progress; take the lead [origin unknown].

........ Collins Essential