- laboratory diagnosis,
- laboratory school,
- labors of hercules,
Origin of laborious
Examples from the Web for laboriously
Hitch picks up his cane, pushes her aside, and laboriously tries to get to his feet, saying, “I'll do it myself.”Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days|David Freeman|December 13, 2014|DAILY BEAST
An “overproduced, overblown, confusingly dark and laboriously ambitious jumble,” ruled Newsday.A ‘Wicked’ Decade: How a Critically Trashed Musical Became a Long-Running Smash|Kevin Fallon|October 30, 2013|DAILY BEAST
Already he had begun to send her picture post-cards, laboriously written over.The Call of the Blood|Robert Smythe Hichens
We have been like an army climbing slowly and laboriously up a steep and rocky mountain.
Laboriously he made things clear to her, Herr Kreutzer helping and coming to an understanding just before she did.The Old Flute-Player|Edward Marshall and Charles T. Dazey
An elderly man was laboriously reading a paper of the preceding day's date.The King of Diamonds|Louis Tracy
Clarence withdrew his attention from the paper with an obvious effort, and spoke in a laboriously polite tone.The Heart of Rachael|Kathleen Norris
late 14c., "hard-working, industrious," from Old French laborios "arduous, wearisome; hard-working" (12c., Modern French laborieux), from Latin laboriosus "toilsome, wearisome, troublesome," from labor (see labor (n.)). Meaning "costing much labor, burdensome" is from early 15c.; meaning "resulting from hard work" is mid-15c. Related: Laboriousness.