lengthen

verb

Etymology: Etymology tree English length English -en English lengthen From length + -en.

1. To make longer, to extend the length of.

   “You need to lengthen the story if you want to have it published.”

   “The platforms of all stations from Shepherds Bush to Liverpool Street have been lengthened from 325 ft. to 427 ft. between tunnel headwalls, to take longer trains.”

2. To become longer.

   “The shadows on the lawn lengthened as the sun began to set.”