1831. New Monthly Mag., LIII. 545. How assiduously and enduringly they toiled.
1862. R. Patterson, Ess. Hist. & Art, 378. The great empires which have enduringly impressed themselves upon the world’s memory.
1888. L. Hearn, in Harper’s Mag., July, 215/1. The work was done cheaply and flimsily, not massively and enduringly.
