1.  endeavour(n = noun.act) endeavor, enterprise - a purposeful or industrious undertaking (especially one that requires effort or boldness); "he had doubts about the whole enterprise"
is a kind of labor, project, task, undertaking
has particulars: fraudulent scheme, illegitimate enterprise, racket, forlorn hope, business activity, commercial activity
Derived form verb endeavour₁

2.  endeavour(n = noun.act) attempt, effort, endeavor, try - earnest and conscientious activity intended to do or accomplish something; "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try"
is a kind of activity
has particulars: batting, best, worst, bid, play, crack, fling, go, offer, pass, whirl, essay, foray, contribution, part, share, liberation, mug's game, power play, squeeze, squeeze play, seeking, shot, stab, shot, nisus, pains, strain, striving, battle, struggle, takeover attempt, run, test, trial, test, trial
Derived form verb endeavour₁

   endeavour(v = verb.social) endeavor, strive - attempt by employing effort; "we endeavor to make our customers happy"
is one way to assay, attempt, essay, seek, try
Derived forms noun endeavour₂, noun endeavour₁
Sample sentences: Somebody ----s to INFINITIVE

endeavour, v. & n. (US endeavor)
--v.
1 tr. (foll. by to + infin.) try earnestly.
2 intr. (foll. by after) archaic strive.
--n. (often foll. by at, or to + infin.) an earnest attempt.

Etymology:
ME f. put oneself in DEVOIR