ascension

/AH0 S EH1 N SH AH0 N/
noun
  1. 1

    The act of ascending; an ascent.

    โ€œThe ascension of the hot-air balloon gave us a better view.โ€

  2. 2

    That which rises, as from distillation.

Source: https://en.wiktionary.org/wiki/ascension