arching

/AA1 R CH IH0 NG/
verb
  1. 1

    To form into an arch shape

    โ€œThe cat arched its backโ€

  2. 2

    To cover with an arch or arches.

noun
  1. 1

    The arched part of a structure.

adjective
  1. 1

    Hogging, as opposed to sagging

Source: https://en.wiktionary.org/wiki/arch, https://en.wiktionary.org/wiki/arching