Definition of "grieve"

grieve¹

/ɡɹiːv/

verb
third-person singular simple present grieves, present participle grieving, simple past and past participle grieved
1. (transitive) To cause sorrow or distress to.
  Quotations
  1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Ephesian 4:30–passage-Grieve not the Holy Spirit of God.
  Thy maidens griev'd themselves at my concern.
  1782, William Cowper, “On the Receipt of my Mother’s Picture”, in Poems, London: […] J[oseph] Johnson, […]
2. (transitive) To feel very sad about; to mourn; to sorrow for.
3. (intransitive) To experience grief.
4. (transitive, archaic) To harm.
5. (transitive) To submit or file a grievance (about).
  Quotations
  Even if the executive director rules against the employee on appeal, the employee can still grieve the termination to the superintendent followed by an appeal to the [...] Board of Trustees.
  2009, D'Amico, Rob (editor), Texas Teacher, published by Texas AFT (affiliate of American Federation of Teachers, AFL-CIO); "Austin classified employees gain due process rights", April 2009, p14

grieve²

/ɡɹiːv/

noun
plural grieves
1. (obsolete) A governor of a town or province.
2. (chiefly Scotland) A manager or steward, e.g. of a farm.
  Quotations
  Their children were horsewhipped by the grieve.
  1815 February 24, [Walter Scott], Guy Mannering; or, The Astrologer. […], volumes (please specify |volume=I to III), Edinburgh: […] James Ballantyne and Co. for Longman, Hurst, Rees, Orme, and Brown, […]; and Archibald Constable and Co., […]