lather

/L AE1 DH ER0/
noun
  1. 1

    The foam made by rapidly stirring soap and water.

  2. 2

    Foam from profuse sweating, as of a horse.

  3. 3

    A state of agitation.

verb
  1. 1

    To cover with lather.

  2. 2

    To beat or whip.

  3. 3

    To form lather or froth, as a horse does when profusely sweating.

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