Webster's Revised Unabridged Dictionary · 1913

Laboring

Laboring , adjective

1.
That labors; performing labor; esp., performing coarse, heavy work, not requiring skill also, set apart for labor; as, laboring days.
The sleep of a laboring man is sweet. — Eccl. v. 12
2.
Suffering pain or grief. — Pope
Collocations (1)
Laboring oar , the oar which requires most strength and exertion; often used figuratively; as, to have, or pull, the laboring oar in some difficult undertaking.