Endeavor /(?)/

En·deav·or

Endeavor

v. t.

imp. & p. p. Endeavored; p. pr. & vb. n. Endeavoring

  1. To exert physical or intellectual strength for the attainment of; to use efforts to effect; to strive to achieve or reach; to try; to attempt.
    It is our duty to endeavor the recovery of these beneficial subjects.
    — Ld. Chatham.

Phrases & Compounds
To endeavor one's self
to exert one's self strenuously to the fulfillment of a duty.

Endeavor

v. i.
  1. To exert one's self; to work for a certain end.
    And such were praised who but endeavored well.
    He had . . . endeavored earnestly to do his duty.

Endeavor

n.
  1. An exertion of physical or intellectual strength toward the attainment of an object; a systematic or continuous attempt; an effort; a trial.
    To employ all my endeavor to obey you.

Phrases & Compounds
To do one's endeavor
to do one's duty; to put forth strenuous efforts to attain an object; -- a phrase derived from the Middle English phrase “to do one's dever” (duty).