decongest

de- +‎ congest

• (UK) IPA^(key): /diːkənˈdʒɛst/

decongest (third-person singular simple present decongests, present participle decongesting, simple past and past participle decongested)

1. To free from congestion
   • 2021 May 5, Philip Haigh, “I think we need better than this from the rail industry”, in RAIL, number 930, page 50, photo caption:

     Philip Haigh argues that the discussion in a private meeting of three options to decongest Manchester's Castlefield Corridor has reinforced a perception of 'increasing secrecy' around rail planning.

• “decongest”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

• congested