overtoil

From over- +‎ toil.

overtoil (third-person singular simple present overtoils, present participle overtoiling, simple past and past participle overtoiled)

1. (transitive) To weary (someone or something) excessively; to exhaust or tire out by working too much.
   • 1859, Alfred Tennyson, “Enid”, in Idylls of the King, London: Edward Moxon & Co., […], →OCLC, pages 65–66:

     Then dozed awhile herself, but overtoil'd / By that day's grief and travel, evermore / Seem'd catching at a rootless thorn, and then / Went slipping down horrible precipices, / And strongly striking out her limbs awoke; […]

• “overtoil”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.