Or how such arduous merit crown'd? "Poetical Works of Akenside" by Mark Akenside

Unfortunately, however, the circumstances in which I was placed were arduous, and I was obliged to act with severity, and to postpone the execution of my plans. "The Project Gutenberg Memoirs of Napoleon Bonaparte" by Bourrienne, Constant, and Stewarton

Three experienced workmen were sent, at his request, from Florence, and he began at once upon the arduous labour. "The Life of Michelangelo Buonarroti" by John Addington Symonds