marvelling

/M AA0 R V EH1 L IH0 NG/
verb
  1. 1

    To become filled with wonderment or admiration; to be amazed at something.

  2. 2

    To marvel at.

  3. 3

    (used impersonally) To cause to marvel or be surprised.

noun
  1. 1

    The act of one who marvels; amazement.

Source: https://en.wiktionary.org/wiki/marvel, https://en.wiktionary.org/wiki/marvelling